Question

java中Applet小程序如何实现字符串反向输出

Answer 1

反向遍历就完了，取下字符串的长度，写个for循环，反向遍历
StringBuilder 也有反向输出的方法

Answer 2

String str="abcd123";
StringBuilder sb=new StringBuilder(str);
str=sb.reverse().toString;

Answer 3

import java.applet.*;
import java.awt.*;
public class myapplet extends Applet
{
private String paixu(String str)
{
String strNew="";
for(int i=0;i<str.length();i++)
{
strNew=str.substring(i,i+1)+strNew;
}
return strNew;
}
public void paint(Graphics g)
{
String str="abcedf";
String str2=paixu(str);
g.drawString(str2,10,20);
}
}