First commit
This commit is contained in:
commit
d2a3f80129
8 changed files with 449 additions and 0 deletions
85
.gitignore
vendored
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85
.gitignore
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##############################
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## Java
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##############################
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.mtj.tmp/
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*.class
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*.jar
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*.war
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*.ear
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*.nar
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hs_err_pid*
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replay_pid*
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##############################
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## Maven
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##############################
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target/
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pom.xml.tag
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pom.xml.releaseBackup
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pom.xml.versionsBackup
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pom.xml.next
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pom.xml.bak
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release.properties
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dependency-reduced-pom.xml
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buildNumber.properties
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.mvn/timing.properties
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.mvn/wrapper/maven-wrapper.jar
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##############################
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## Gradle
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##############################
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bin/
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build/
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.gradle
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.gradletasknamecache
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gradle-app.setting
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!gradle-wrapper.jar
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##############################
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## IntelliJ
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##############################
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out/
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.idea/
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.idea_modules/
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*.iml
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*.ipr
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*.iws
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##############################
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## Eclipse
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##############################
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.settings/
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bin/
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tmp/
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.metadata
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.classpath
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.project
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*.tmp
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*.bak
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*.swp
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*~.nib
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local.properties
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.loadpath
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.factorypath
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##############################
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## NetBeans
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##############################
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nbproject/private/
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build/
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nbbuild/
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dist/
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nbdist/
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nbactions.xml
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nb-configuration.xml
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##############################
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## Visual Studio Code
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##############################
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.vscode/
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.code-workspace
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##############################
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## OS X
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##############################
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.DS_Store
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29
build.gradle
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29
build.gradle
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plugins {
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id 'java'
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}
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group 'ru.erius'
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version '1.0'
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def main_class = group + '.hamming.Hamming'
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repositories {
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mavenCentral()
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}
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dependencies {
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testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.1'
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testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.1'
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}
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test {
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useJUnitPlatform()
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}
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jar {
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manifest {
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attributes(
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'Manifest-Version': '1.0',
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'Main-Class': main_class
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)
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}
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}
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BIN
gradle/wrapper/gradle-wrapper.jar
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Normal file
BIN
gradle/wrapper/gradle-wrapper.jar
vendored
Normal file
Binary file not shown.
5
gradle/wrapper/gradle-wrapper.properties
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5
gradle/wrapper/gradle-wrapper.properties
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distributionBase=GRADLE_USER_HOME
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distributionPath=wrapper/dists
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distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
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zipStoreBase=GRADLE_USER_HOME
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zipStorePath=wrapper/dists
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185
gradlew
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185
gradlew
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#!/usr/bin/env sh
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#
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# Copyright 2015 the original author or authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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##############################################################################
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##
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## Gradle start up script for UN*X
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##
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##############################################################################
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# Attempt to set APP_HOME
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# Resolve links: $0 may be a link
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PRG="$0"
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# Need this for relative symlinks.
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while [ -h "$PRG" ] ; do
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ls=`ls -ld "$PRG"`
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link=`expr "$ls" : '.*-> \(.*\)$'`
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if expr "$link" : '/.*' > /dev/null; then
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PRG="$link"
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else
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PRG=`dirname "$PRG"`"/$link"
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fi
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done
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SAVED="`pwd`"
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cd "`dirname \"$PRG\"`/" >/dev/null
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APP_HOME="`pwd -P`"
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cd "$SAVED" >/dev/null
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APP_NAME="Gradle"
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APP_BASE_NAME=`basename "$0"`
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# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
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DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
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# Use the maximum available, or set MAX_FD != -1 to use that value.
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MAX_FD="maximum"
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warn () {
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echo "$*"
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}
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die () {
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echo
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echo "$*"
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echo
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exit 1
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}
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# OS specific support (must be 'true' or 'false').
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cygwin=false
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msys=false
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darwin=false
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nonstop=false
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case "`uname`" in
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CYGWIN* )
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cygwin=true
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;;
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Darwin* )
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darwin=true
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;;
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MSYS* | MINGW* )
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msys=true
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;;
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NONSTOP* )
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nonstop=true
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;;
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esac
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CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
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# Determine the Java command to use to start the JVM.
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if [ -n "$JAVA_HOME" ] ; then
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if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
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# IBM's JDK on AIX uses strange locations for the executables
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JAVACMD="$JAVA_HOME/jre/sh/java"
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else
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JAVACMD="$JAVA_HOME/bin/java"
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fi
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if [ ! -x "$JAVACMD" ] ; then
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die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
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Please set the JAVA_HOME variable in your environment to match the
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location of your Java installation."
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fi
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else
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JAVACMD="java"
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which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
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Please set the JAVA_HOME variable in your environment to match the
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location of your Java installation."
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fi
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# Increase the maximum file descriptors if we can.
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if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
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MAX_FD_LIMIT=`ulimit -H -n`
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if [ $? -eq 0 ] ; then
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if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
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MAX_FD="$MAX_FD_LIMIT"
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fi
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ulimit -n $MAX_FD
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if [ $? -ne 0 ] ; then
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warn "Could not set maximum file descriptor limit: $MAX_FD"
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fi
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else
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warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
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fi
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fi
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# For Darwin, add options to specify how the application appears in the dock
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if $darwin; then
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GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
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fi
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# For Cygwin or MSYS, switch paths to Windows format before running java
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if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
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APP_HOME=`cygpath --path --mixed "$APP_HOME"`
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CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
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JAVACMD=`cygpath --unix "$JAVACMD"`
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# We build the pattern for arguments to be converted via cygpath
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ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
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SEP=""
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for dir in $ROOTDIRSRAW ; do
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ROOTDIRS="$ROOTDIRS$SEP$dir"
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SEP="|"
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done
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OURCYGPATTERN="(^($ROOTDIRS))"
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# Add a user-defined pattern to the cygpath arguments
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if [ "$GRADLE_CYGPATTERN" != "" ] ; then
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OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
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fi
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# Now convert the arguments - kludge to limit ourselves to /bin/sh
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i=0
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for arg in "$@" ; do
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CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
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CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
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if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
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eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
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else
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eval `echo args$i`="\"$arg\""
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fi
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i=`expr $i + 1`
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done
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case $i in
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0) set -- ;;
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1) set -- "$args0" ;;
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2) set -- "$args0" "$args1" ;;
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3) set -- "$args0" "$args1" "$args2" ;;
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4) set -- "$args0" "$args1" "$args2" "$args3" ;;
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5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
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6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
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7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
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8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
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9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
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esac
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fi
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# Escape application args
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save () {
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for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
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echo " "
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}
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APP_ARGS=`save "$@"`
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# Collect all arguments for the java command, following the shell quoting and substitution rules
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eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
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exec "$JAVACMD" "$@"
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89
gradlew.bat
vendored
Normal file
89
gradlew.bat
vendored
Normal file
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@ -0,0 +1,89 @@
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@rem
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@rem Copyright 2015 the original author or authors.
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@rem
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@rem Licensed under the Apache License, Version 2.0 (the "License");
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@rem you may not use this file except in compliance with the License.
|
||||
@rem You may obtain a copy of the License at
|
||||
@rem
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||||
@rem https://www.apache.org/licenses/LICENSE-2.0
|
||||
@rem
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||||
@rem Unless required by applicable law or agreed to in writing, software
|
||||
@rem distributed under the License is distributed on an "AS IS" BASIS,
|
||||
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
@rem See the License for the specific language governing permissions and
|
||||
@rem limitations under the License.
|
||||
@rem
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|
||||
@if "%DEBUG%" == "" @echo off
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@rem ##########################################################################
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@rem
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@rem Gradle startup script for Windows
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@rem
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@rem ##########################################################################
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@rem Set local scope for the variables with windows NT shell
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if "%OS%"=="Windows_NT" setlocal
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set DIRNAME=%~dp0
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if "%DIRNAME%" == "" set DIRNAME=.
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set APP_BASE_NAME=%~n0
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set APP_HOME=%DIRNAME%
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@rem Resolve any "." and ".." in APP_HOME to make it shorter.
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for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
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@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
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set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
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@rem Find java.exe
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if defined JAVA_HOME goto findJavaFromJavaHome
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set JAVA_EXE=java.exe
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%JAVA_EXE% -version >NUL 2>&1
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if "%ERRORLEVEL%" == "0" goto execute
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||||
echo.
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||||
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
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echo.
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||||
echo Please set the JAVA_HOME variable in your environment to match the
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echo location of your Java installation.
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goto fail
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:findJavaFromJavaHome
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set JAVA_HOME=%JAVA_HOME:"=%
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set JAVA_EXE=%JAVA_HOME%/bin/java.exe
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||||
if exist "%JAVA_EXE%" goto execute
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||||
echo.
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||||
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
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||||
echo.
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||||
echo Please set the JAVA_HOME variable in your environment to match the
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||||
echo location of your Java installation.
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||||
|
||||
goto fail
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||||
:execute
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||||
@rem Setup the command line
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||||
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||||
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
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||||
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||||
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||||
@rem Execute Gradle
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||||
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
|
||||
|
||||
:end
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||||
@rem End local scope for the variables with windows NT shell
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||||
if "%ERRORLEVEL%"=="0" goto mainEnd
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||||
|
||||
:fail
|
||||
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
|
||||
rem the _cmd.exe /c_ return code!
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||||
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
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||||
exit /b 1
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||||
|
||||
:mainEnd
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||||
if "%OS%"=="Windows_NT" endlocal
|
||||
|
||||
:omega
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||||
2
settings.gradle
Normal file
2
settings.gradle
Normal file
|
|
@ -0,0 +1,2 @@
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|||
rootProject.name = 'Hamming'
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||||
|
||||
54
src/main/java/ru/erius/hamming/Hamming.java
Normal file
54
src/main/java/ru/erius/hamming/Hamming.java
Normal file
|
|
@ -0,0 +1,54 @@
|
|||
package ru.erius.hamming;
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||||
|
||||
import java.io.BufferedReader;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStreamReader;
|
||||
import java.util.List;
|
||||
import java.util.stream.Collectors;
|
||||
|
||||
public class Hamming {
|
||||
public static void main(String[] args) {
|
||||
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
|
||||
while (true) {
|
||||
System.out.print("Введите сообщение из 7 цифр '0' или '1' (отправьте пустую строку для выхода): ");
|
||||
try {
|
||||
String input = reader.readLine();
|
||||
if (input.isBlank()) break;
|
||||
String result = Hamming.decodeHamming(input);
|
||||
System.out.println(result);
|
||||
} catch (IOException e) {
|
||||
System.out.println("Что-то пошло не так, попробуйте ещё раз");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private static String decodeHamming(String seq) {
|
||||
seq = seq.trim();
|
||||
if (seq.length() != 7) return "Последовательность должна быть длиной в 7 символов!";
|
||||
if (!seq.matches("[0-1]+")) return "Последовательность должна содержать только цифры 0 или 1!";
|
||||
List<Integer> seqInt = seq.chars().mapToObj(Character::getNumericValue).collect(Collectors.toList());
|
||||
int s1 = (seqInt.get(0) + seqInt.get(2) + seqInt.get(4) + seqInt.get(6)) % 2,
|
||||
s2 = (seqInt.get(1) + seqInt.get(2) + seqInt.get(5) + seqInt.get(6)) % 2,
|
||||
s3 = (seqInt.get(3) + seqInt.get(4) + seqInt.get(5) + seqInt.get(6)) % 2;
|
||||
int s = s3 * 4 + s2 * 2 + s1;
|
||||
String iSeq = "" + seq.charAt(2) + seq.charAt(4) + seq.charAt(5) + seq.charAt(6);
|
||||
switch (s) {
|
||||
case 0:
|
||||
return "В последовательности нет ошибок. Сообщение: " + iSeq;
|
||||
case 1:
|
||||
case 2:
|
||||
case 4:
|
||||
return "В последовательности была ошибка в проверочном бите на позиции " + s + ". Сообщение: " + iSeq;
|
||||
case 3:
|
||||
case 5:
|
||||
case 6:
|
||||
case 7:
|
||||
int index = s == 3 ? 0 : s - 4;
|
||||
char replace = iSeq.charAt(index) == '1' ? '0' : '1';
|
||||
iSeq = iSeq.substring(0, index) + replace + iSeq.substring(index + 1);
|
||||
return "В последовательности была ошибка в информационном бите на позиции " + s + ". Сообщение: " + iSeq;
|
||||
default:
|
||||
throw new IllegalStateException("Что-то пошло не так в работе программы");
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue