zoukankan      html  css  js  c++  java
  • 计算器

    import java.awt.*;

    1.实现简单的计算器界面

    2.用到布局管理器中的一些常用的,如GridLayout,FlowLayout
    public class LoginFrame extends Frame{
     public LoginFrame()
     {
         super("计算器");
         this.setSize(200,300);
         this.setLocation(300,240);
         this.setBackground(Color.lightGray);
         this.setLayout(new GridLayout());
         this.setLayout(new  GridLayout(5,6));
         String str[]={"MC","MR","MS","M-","M+","7","8","9","/","4","5","6","*","1","2","3","-","0",".","=","+"};
         for(int i=0;i<str.length;i++)
          this.add(new Button(str[i]));
         this.setVisible(true);
     }
        public static void main(String[] args) {new LoginFrame();}
    }

     

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  • 原文地址:https://www.cnblogs.com/LY1314/p/7141024.html
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