runtime-error - Confusing Error in Bluej

Question

When i run following it runs successfully :

import java.util.*;
public class god {
    public void main() {
        int chalnabey;
        Scanner in=new Scanner(System.in);
        System.out.println("t");
    }
}

But when i add another line to assign input to variable, the left side red loader goes non-stop progressing and my code never runs !

import java.util.*;
public class god {
    public void main() {
        int chalnabey;
        Scanner in=new Scanner(System.in);
        chalnabey=in.nextInt();               //This is addition line to previous code
        System.out.println("t");
    }
}

Can anybody tell why this happens and how to correct it ?

Answer 1

您的代码正在等待来自键盘的输入

chalnabey = in.nextInt();

打开 BlueJ 终端窗口（从 BlueJ 主菜单，单击查看 > 显示终端），您将看到光标闪烁。输入任何文本并按下Enter，您的程序将继续执行。