计算器
计算器
1 import java.awt.BorderLayout; 2 import java.awt.Color; 3 import java.awt.GridLayout; 4 5 import javax.swing.*; 6 public class ccccc{ 7 JFrame f; 8 JPanel p; 9 JTextField t; 10 JButton jb[]; 11 GridLayout gi; 12 String title[]={"7","8","9","/","4","5","6","*","1","2","3","-","0",".","=","+"}; 13 public ccccc(){ 14 f=new JFrame(); 15 p=new JPanel(); 16 t=new JTextField(); 17 jb=new JButton[title.length]; 18 gi=new GridLayout(4,4); 19 p.setLayout(gi); 20 for(int i=0;i<title.length;i++) 21 { 22 jb[i]=new JButton(title[i]); 23 p.add(jb[i]); 24 } 25 p.setBackground(Color.gray); 26 f.add(t,BorderLayout.NORTH); 27 f.add(p,BorderLayout.CENTER); 28 f.add(p); 29 f.setSize(300,300); 30 f.setVisible(true); 31 } 32 public static void main(String[] args){ 33 new ccccc(); 34 } 35 }
