Question

将字符串"hello world,hello java"输出为"java hello,world hello"。怎么用java编程实现

Answer 1

倒是可以鉴戒一下这个例子：

import java.util.Arrays;
public class Test {
public static void main(String[] args) {
String s = "123456789";
StringBuffer sb = new StringBuffer();
char[] arr = s.toCharArray();
System.out.println("拆分后:" + Arrays.toString(arr));
int len = s.length();
for (int b = 0; b < s.length(); b++) {
sb.append(arr[len - b - 1]);
}
String result = sb.toString();
System.out.println("倒着输出:" + result);
}
}

Answer 2

String str = "hello world,hello java";
String result = "";
String[] strs = str.split(",");
String[] strworld = strs[0].split(" ");
String[] strjava = strs[1].split(" ");
result = strjava[1]+" "+strjava[0]+","+strworld[1]+" "+strworld[0];