java求补修改程序

来源：百度知道 编辑：UC知道 时间：2024/04/28 02:01:34
import java.awt.*;
import java.applet.*;
public class shnnui{
String s1="student";
String s2=new String("china");
char a[]={'t','e','a','c','h','e','r'};
String s3=new String(a);
String s4=new String(a,2,4);
byte b[]={97,98,99,100,101};
String s5=new String(b,0);
public void paint(Graphics g){
g.drawString("s1="+s1,20,20);
g.drawString("s2="+s2,20,40);
g.drawString("s3="+s3,20,60);
g.drawString("s4="+s4,20,80);
g.drawString("s5="+s5,20,100);
g.drawString("s1的长度为："+length(s1));
g.drawString("s2的第2个字符为："+charAt(int 2));
g.drawString("s2转换为大写为："+toUpperCase(s2));
g.drawString("ch在s3中的位置为："+ );
g.drawString("s4在前缀与ac的比较的结果为："+startwith(ac));
g.drawString("s5的第2个位置开始长度为2的字串为："

import java.awt.*;
import java.applet.*;

public class shnnui extends Applet{//小应用程序所以继承小应用程序
String s1 = "student";

String s2 = new String("china");

char a[] = { 't', 'e', 'a', 'c', 'h', 'e', 'r' };

String s3 = new String(a);

String s4 = new String(a, 2, 4);

byte b[] = { 97, 98, 99, 100, 101 };

String s5 = new String(b, 0);

public void paint(Graphics g) {
g.drawString("s1=" + s1, 20, 20);
g.drawString("s2=" + s2, 20, 40);
g.drawString("s3=" + s3, 20, 60);
g.drawString("s4=" + s4, 20, 80);
g.drawString("s5=" + s5, 20, 100);
g.drawString("s1的长度为：" + s1.length(), 20, 120);
g.drawString("s2的第2个字符为：" + s2.charAt(2), 20, 140);
g.drawString("s2转换为大写为：" + s2.toUpperCase(), 20, 1