Compile and run a java program in one command.

javacr

#! /bin/bash

echo Compiling $1...
# make the build directory if it doesn't exist already
mkdir -p "`pwd`/build"
javac "$1" -d "`pwd`/build"

rc=$? # return code of javac
[ $rc -eq 0 ] || exit $rc; # exit if the return code of the compilation isn't 0


filename=$(basename "$1")
name="${filename%.*}"

echo Attempting to run $name...

olddir="`pwd`"

cd "`pwd`/build"
java "$name"
cd "$olddir"