例1
public class Test01 {
public static void main(String[] args) {
String xx="Hi ";
System.out.println(xx);
tell(xx);
System.out.println(xx);
}
public static void tell(String xx){
xx="nihao!";
}
}
运行结果
Hi
Hi
public class Test01 {
public static void main(String[] args) {
String xx="Hi ";
System.out.println(xx);
tell(xx);
System.out.println(xx);
}
public static void tell(String xx){
xx="nihao!";
}
}
运行结果
Hi
Hi
