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利用java GUI图形工具实现简单的计算器界面的功能（仅仅实现计算器的界面不可以真实的实现计算功能）_java入门计算器不实现功能

作者：Monodyee | 2024-03-20 18:37:53

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java入门计算器不实现功能

结果展示：

 

  1. //定义的按钮类
  2. import javax.swing.*;
  3. import java.awt.*;
  4.  
  5. public class MyJbutton extends JButton {
  6.     public MyJbutton(String name){
  7.         super(name);
  8.         setBorderPainted(true);
  9.         setEnabled(true);
  10.         setFont(new  java.awt.Font("华文行楷",  1,  15));
  11.         setBackground(Color.white);
  12.     }
  13.  
  14. }
  1. //定义的界面类
  2. import javax.swing.*;
  3.  
  4. public class Myjframe extends JFrame {
  5.     public Myjframe(int x,int y,int w,int h){
  6.         super();
  7.         setBounds(x,y,w,h);
  8.  
  9.     }
  10. }
  1. //主程序
  2. import javax.swing.*;
  3. import java.awt.*;
  4. import java.awt.event.ActionEvent;
  5. import java.awt.event.ActionListener;
  6.  
  7. public class Test {
  8.  
  9.     public static void main(String[] args) {
  10.         new MyInterface();
  11.  
  12.     }
  13. }
  14. class MyInterface {
  15.     MyJbutton button17 = new MyJbutton("0");
  16.     MyJbutton button18 = new MyJbutton("1");
  17.     MyJbutton button19 = new MyJbutton("2");
  18.     MyJbutton button20 = new MyJbutton("3");
  19.     MyJbutton button21 = new MyJbutton("4");
  20.     MyJbutton button22 = new MyJbutton("5");
  21.     MyJbutton button23 = new MyJbutton("6");
  22.     MyJbutton button24 = new MyJbutton("7");
  23.     MyJbutton button25 = new MyJbutton("8");
  24.     MyJbutton button26 = new MyJbutton("9");
  25.  
  26.     JTextField jtext = new JTextField(40);
  27.     public MyInterface() {
  28.         Myjframe jf = new Myjframe(400, 400, 600, 400);
  29.         jf.setTitle("计算器");
  30.         jf.setLayout(new BorderLayout());
  31.  
  32.         //文本框
  33.         jtext.setHorizontalAlignment(JTextField.RIGHT);
  34.         JPanel jpanel0 = new JPanel(new BorderLayout());
  35.         JPanel jPanelinput = new JPanel();
  36.         jPanelinput.add(jtext);
  37.         jpanel0.add(jPanelinput, BorderLayout.NORTH);
  38.         jf.add(jpanel0, BorderLayout.CENTER);
  39.  
  40.  
  41.         //标签
  42.         JMenuBar bar = new JMenuBar();
  43.         jf.setJMenuBar(bar);
  44.         JMenu help = new JMenu("帮助");
  45.  
  46.         bar.add(help);
  47.         JMenuItem about1=new JMenuItem("关于");
  48.         help.add(about1);
  49.         about1.addActionListener(new Myabout());
  50.         jf.add(bar,BorderLayout.NORTH);
  51.  
  52.  
  53.         //选择区
  54.         JPanel jpanel2 = new JPanel(new BorderLayout());
  55.         jpanel0.add(jpanel2, BorderLayout.CENTER);
  56.         //进制选择
  57.         JPanel jPanelselect = new JPanel(new GridLayout(1, 2));
  58.         jpanel2.add(jPanelselect, BorderLayout.NORTH);
  59.         JRadioButton radioButton1 = new JRadioButton("十进制",true);
  60.         JRadioButton radioButton2 = new JRadioButton("八进制");
  61.         JRadioButton radioButton3 = new JRadioButton("二进制");
  62.         radioButton1.setActionCommand("十");
  63.         radioButton2.setActionCommand("八");
  64.         radioButton3.setActionCommand("二");
  65.  
  66.         button17.addActionListener(new MyListener(this));
  67.         button18.addActionListener(new MyListener(this));
  68.         button19.addActionListener(new MyListener(this));
  69.         button20.addActionListener(new MyListener(this));
  70.         button21.addActionListener(new MyListener(this));
  71.         button22.addActionListener(new MyListener(this));
  72.         button23.addActionListener(new MyListener(this));
  73.         button24.addActionListener(new MyListener(this));
  74.         button25.addActionListener(new MyListener(this));
  75.         button26.addActionListener(new MyListener(this));
  76.         radioButton1.addActionListener(new MyListener(this));
  77.         radioButton2.addActionListener(new MyListener(this));
  78.         radioButton3.addActionListener(new MyListener(this));
  79.         ButtonGroup group = new ButtonGroup();
  80.         group.add(radioButton1);
  81.         group.add(radioButton2);
  82.         group.add(radioButton3);
  83.         JPanel jPanelsystem1 = new JPanel();
  84.         jPanelsystem1.add(radioButton1);
  85.         jPanelsystem1.add(radioButton2);
  86.         jPanelsystem1.add(radioButton3);
  87.         jPanelselect.add(jPanelsystem1);
  88.         // Inv和 Hyp的选则
  89.         JCheckBox jCheckBox1 = new JCheckBox("Inv");
  90.         JCheckBox jCheckBox2 = new JCheckBox("Hyp");
  91.         JPanel jPanelsystem2 = new JPanel();
  92.         jPanelsystem2.add(jCheckBox1);
  93.         jPanelsystem2.add(jCheckBox2);
  94.         jPanelselect.add(jPanelsystem2);
  95.  
  96.  
  97.         JPanel jpanel3 = new JPanel(new GridLayout(1, 2, 20, 0));
  98.         jpanel2.add(jpanel3, BorderLayout.CENTER);
  99.  
  100.         //功能选择
  101.         JPanel jPanel4 = new JPanel(new GridLayout(4, 4, 3, 4));
  102.         jpanel3.add(jPanel4);
  103.         MyJbutton button1=new MyJbutton("Sin");
  104.         MyJbutton button2=new MyJbutton("And");
  105.         MyJbutton button3=new MyJbutton("(");
  106.         MyJbutton button4=new MyJbutton(")");
  107.         MyJbutton button5=new MyJbutton("Cos");
  108.         MyJbutton button6=new MyJbutton("Or");
  109.         MyJbutton button7=new MyJbutton("Exp");
  110.         MyJbutton button8=new MyJbutton("Ln");
  111.         MyJbutton button9=new MyJbutton("tan");
  112.         MyJbutton button10=new MyJbutton("Xor");
  113.         MyJbutton button11=new MyJbutton("x^y");
  114.         MyJbutton button12=new MyJbutton("log");
  115.         MyJbutton button13=new MyJbutton("e");
  116.         MyJbutton button14=new MyJbutton("Not");
  117.         MyJbutton button15=new MyJbutton("x^3");
  118.         MyJbutton button16=new MyJbutton("n!");
  119.  
  120.         jPanel4.add(button1);
  121.         jPanel4.add(button2);
  122.         jPanel4.add(button3);
  123.         jPanel4.add(button4);
  124.         jPanel4.add(button5);
  125.         jPanel4.add(button6);
  126.         jPanel4.add(button7);
  127.         jPanel4.add(button8);
  128.         jPanel4.add(button9);
  129.         jPanel4.add(button10);
  130.         jPanel4.add(button11);
  131.         jPanel4.add(button12);
  132.         jPanel4.add(button13);
  133.         jPanel4.add(button14);
  134.         jPanel4.add(button15);
  135.         jPanel4.add(button16);
  136.  
  137.         //数字选择
  138.         JPanel jPanel5 = new JPanel(new GridLayout(4, 4, 3, 4));
  139.         jpanel3.add(jPanel5);
  140.  
  141.         MyJbutton button27 = new MyJbutton("+");
  142.         MyJbutton button28 = new MyJbutton("-");
  143.         MyJbutton button29 = new MyJbutton("*");
  144.         MyJbutton button30 = new MyJbutton("/");
  145.         MyJbutton button31 = new MyJbutton("C");
  146.         MyJbutton button32 = new MyJbutton("=");
  147.         jPanel5.add(button17);
  148.         jPanel5.add(button18);
  149.         jPanel5.add(button19);
  150.         jPanel5.add(button20);
  151.         jPanel5.add(button21);
  152.         jPanel5.add(button22);
  153.         jPanel5.add(button23);
  154.         jPanel5.add(button24);
  155.         jPanel5.add(button25);
  156.         jPanel5.add(button26);
  157.         jPanel5.add(button27);
  158.         jPanel5.add(button28);
  159.         jPanel5.add(button29);
  160.         jPanel5.add(button30);
  161.         jPanel5.add(button31);
  162.         jPanel5.add(button32);
  163.  
  164.  
  165.         jf.setVisible(true);
  166.         jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
  167.     }
  168. }
  169. class MyListener implements ActionListener {
  170.     MyInterface myInterface=null;
  171.     public MyListener(MyInterface myInterface){
  172.         this.myInterface=myInterface;
  173.     }
  174.     @Override
  175.     public void actionPerformed(ActionEvent e) {
  176.         if (e.getActionCommand().equals("二")) {
  177.             myInterface.button17.setEnabled(true);
  178.             myInterface.button18.setEnabled(true);
  179.             myInterface.button19.setEnabled(false);
  180.             myInterface.button20.setEnabled(false);
  181.             myInterface.button21.setEnabled(false);
  182.             myInterface.button22.setEnabled(false);
  183.             myInterface.button23.setEnabled(false);
  184.             myInterface.button24.setEnabled(false);
  185.             myInterface.button25.setEnabled(false);
  186.             myInterface.button26.setEnabled(false);
  187.         }else if(e.getActionCommand().equals("八")){
  188.             myInterface.button17.setEnabled(true);
  189.             myInterface.button18.setEnabled(true);
  190.             myInterface.button19.setEnabled(true);
  191.             myInterface.button20.setEnabled(true);
  192.             myInterface.button21.setEnabled(true);
  193.             myInterface.button22.setEnabled(true);
  194.             myInterface.button23.setEnabled(true);
  195.             myInterface.button24.setEnabled(true);
  196.             myInterface.button25.setEnabled(false);
  197.             myInterface.button26.setEnabled(false);
  198.         } else if (e.getActionCommand().equals("十")) {
  199.             myInterface.button17.setEnabled(true);
  200.             myInterface.button18.setEnabled(true);
  201.             myInterface.button19.setEnabled(true);
  202.             myInterface.button20.setEnabled(true);
  203.             myInterface.button21.setEnabled(true);
  204.             myInterface.button22.setEnabled(true);
  205.             myInterface.button23.setEnabled(true);
  206.             myInterface.button24.setEnabled(true);
  207.             myInterface.button25.setEnabled(true);
  208.             myInterface.button26.setEnabled(true);
  209.         } else if (e.getActionCommand().equals("0")) {
  210.             myInterface.jtext.setText("0");
  211.         } else if (e.getActionCommand().equals("1")) {
  212.             myInterface.jtext.setText("1");
  213.         } else if (e.getActionCommand().equals("2")) {
  214.             myInterface.jtext.setText("2");
  215.         } else if (e.getActionCommand().equals("3")) {
  216.             myInterface.jtext.setText("3");
  217.         } else if (e.getActionCommand().equals("4")) {
  218.             myInterface.jtext.setText("4");
  219.         } else if (e.getActionCommand().equals("5")) {
  220.             myInterface.jtext.setText("5");
  221.         } else if (e.getActionCommand().equals("6")) {
  222.             myInterface.jtext.setText("6");
  223.         }else if(e.getActionCommand().equals("7")){
  224.             myInterface.jtext.setText("7");
  225.         } else if (e.getActionCommand().equals("8")) {
  226.             myInterface.jtext.setText("8");
  227.         } else if (e.getActionCommand().equals("9")) {
  228.             myInterface.jtext.setText("9");
  229.         }
  230.  
  231.     }
  232. }
  233. class Myabout implements ActionListener{
  234.     @Override
  235.     public void actionPerformed(ActionEvent e){
  236.         new MyDialog();
  237.     }
  238. }
  239. class MyDialog extends JDialog{
  240.     public MyDialog(){
  241.         Container container = getContentPane();
  242.         JPanel jPanel=new JPanel(new GridLayout(3,1));
  243.         JLabel name=new JLabel("作者：name");
  244.         JLabel son=new JLabel("学号：123456");
  245.         JLabel clas=new JLabel("班级：计算机");
  246.         jPanel.add(name);
  247.         jPanel.add(son);
  248.         jPanel.add(clas);
  249.         container.add(jPanel);
  250.         setTitle("关于");
  251.         setBounds(450,450,300,200);
  252.         setVisible(true);
  253.  
  254.     }
  255. }

 

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