jlab0603.java

计算机系学习java的专用ppt

public class JLab0603{

        public static void change(String s){
                s=s+"changed ?";
        }
        public static void change(StringBuffer sb){
                sb.append("changed ?");
        }
       
        public static void main(String[] args){
                String s="test";
                StringBuffer sb=new StringBuffer("test");
                System.out.println("s="+s+"sb="+sb);
                change(s);
                change(sb);
                System.out.println("s="+s+"sb="+sb);
        }
}