一个简单的System.in

添加Scanner的输入

新建一个工具类

/*****///package   ******.tools.Scanner;import java.util.Scanner;public class MyScanner {    private static MyScanner myScanner;    private Scanner sc;    private MyScanner(){        sc = new Scanner(System.in);    }    public static MyScanner getInstance(){        if(null == myScanner)            myScanner = new MyScanner();        return myScanner;    }    public Scanner getSc() {        return sc;    }}

其他类引用需要输入时，

import ************tools.MyScanner;

=   MyScanner.getInstance().getSc().next****();

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