http://commons.apache.org/proper/commons-lang/
toString() 쉽게 만들기
http://apache.tt.co.kr//commons/lang/binaries/commons-lang3-3.1-bin.zip
import org.apache.commons.lang.builder.ReflectionToStringBuilder;
@Override
public String toString() {
return ReflectionToStringBuilder.toString(this);
}
