Java StringBuilder reverse()方法

java.lang.StringBuilder.reverse() 方法使该字符序列的序列的反向替换。

1 语法

public StringBuilder reverse()

2 参数

无

3 返回值

该方法返回这个对象的一个引用。

4 示例 

package com.yiidian;

/**
 * 一点教程网： http://www.yiidian.com
 */
/**
 * Java StringBuilder reverse()方法
 */
import java.lang.*;

public class StringBuilderDemo {

  public static void main(String[] args) {
  
    StringBuilder str = new StringBuilder("india");
    System.out.println("string = " + str);

    // reverse characters of the StringBuilder and prints it
    System.out.println("reverse = " + str.reverse());
  
    // reverse is equivalent to the actual
    str = new StringBuilder("malayalam");
    System.out.println("string = " + str);
	
    // reverse characters of the StringBuilder and prints it
    System.out.println("reverse = " + str.reverse());
  }
}

输出结果为：

string = india
reverse = aidni
string = malayalam
reverse = malayalam