public class HelloWorld{
public static void main(String[] args) {
final char MALE='男';
final char FEMALE='女';
System.out.println("MALE=:"+MALE);
System.out.println("FEMALE=:"+FEMALE);
public class HelloWorld{
public static void main(String[] args) {
String a="我爱慕课网";
String b="www.imooc.com";
System.out.println(a+"\n"+b);
public class HelloWorld{
public static void main(String[] args) {
String hobby="慕课网";
System.out.println("修改之前为："+hobby);
hobby="i love 慕课网";
System.out.println("修改之后为："+hobby);
