#!/bin/bash

if [ -z "$1" ]
then
    echo Usage: $0 file.java
    exit 1
fi

if [ -e "$1" ]
then
    javac "$1" && java -ea `echo $1 | sed s/\.java//` && rm `echo $1 | sed s/\.java/\.class/`
    exit 0
else
    echo File \""$1"\" does not exist.
    exit 2
fi