Java扫描器不能在eclipse上工作 [英] Java scanner not working on eclipse

问题描述

程序编译并运行，但不允许我输入任何值。该程序只是结束而不让我输入任何东西。为什么？

The program compiles and runs, but it is not allowing me to input any value. The program just ends without letting me input anything. Why?

package prac;

import java.util.Scanner;

    public class prac {

        public static void main(String args[]) {

            Scanner input = new Scanner(System. in );
            int number;
            System.out.println("Input number: ");
            number = input.nextInt();
            System.out.println(number);


        }

    }

推荐答案

看起来你错过了扫描仪的简短说明

Looks like you are missing a close statement for Scanner

尝试：

number = input.nextInt();
in.close();

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