Java CharArrayReader reset()方法

java.io.CharArrayReader.reset() 用于将流重置为最新标记。

1 语法

public void reset()

2 参数

无

3 返回值

无

4 示例 

package com.yiidian;

/**
 * 一点教程网： http://www.yiidian.com
 */
/**
 * java.io.CharArrayReader.reset()方法的例子
 */
import java.io.CharArrayReader;
import java.io.IOException;

public class Demo {
    public static void main(String[] args) {      
        CharArrayReader car = null;
        char[] ch = {'A', 'B', 'C', 'D', 'E'};

        try {
            // create new character array reader
            car = new CharArrayReader(ch);

            int value = 0;

            // read till the end of the stream
            while((value = car.read())!=-1) {

                // convert integer to char
                char c = (char)value;

                // print characters
                System.out.print(c + " ");
            }

            // reset invoked
            car.reset();
            System.out.println("\nReset() invoked");

            // read till the end of the stream
            while((value = car.read())!=-1) {

                // convert integer to char
                char c = (char)value;

                // print characters
                System.out.print(c + " ");
            }

        } catch(IOException e) {
            // if I/O error occurs
            e.printStackTrace();
        } finally {
            // releases any system resources associated with the stream
            if(car!=null)
                car.close();
        }
    }
}

输出结果为：

A B C D E 
Reset() invoked
A B C D E