import java.awt.GridLayout;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JTextField;import java.awt.BorderLayout;class Calculator extends JFrame{private JPanel pan= new JPanel();private JButton button;private JTextField text;String number[]={"7","8","9","/","4","5","6","*","1","2","3","-","0",".","=","+"};public Calculator() {super("小神童計算器");setSize(600,600);setLayout(new BorderLayout(5,5));setVisible(true);text=new JTextField("請輸入數字",20);pan.setLayout(new GridLayout(4,4));for(int i=0;i<12;i++){button=new JButton(number[i]);pan.add(button);}pan.setVisible(true);//add(text,BorderLayout.NORTH);add(pan,BorderLayout.CENTER);setDefaultCloseOperation(EXIT_ON_CLOSE);}}public class test {public static void main(String [] args){Calculator cal=new Calculator();}}
我是想寫一個計算器的面板，請問該怎么辦？
繁花不似錦
2022-10-07 12:15:53
