28. 27 Java 100本ノック例えばこんなの(1):解答例 errorcheck() { if [ $1 -ne 0 ]; then exit $1 fi } CLASSES=classes JARFILE=answer010.jar if [ ! -d ${CLASSES} ]; then mkdir ${CLASSES} errorcheck $? fi javac -sourcepath src -d ${CLASSES} -encoding UTF-8 src/Answer010.java errorcheck $? jar cfe ${JARFILE} Answer010 -C ${CLASSES} Answer010.class errorcheck $? java -jar ${JARFILE} errorcheck $? answer010.sh