gui小计算器的程序写法

import java.awt.BorderLayout;
import java.awt.EventQueue;
 
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import java.awt.BorderLayout;
import java.awt.EventQueue;
 
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.JButton;
import java.awt.Color;
import javax.swing.JTextArea;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.JCheckBox;
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.SwingConstants;
import java.awt.Font;
 
public class gui1 extends JFrame {
 
    private JPanel contentPane;
    private JTextField textField;
 
    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    gui1 frame = new gui1();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }
 
    /**
     * Create the frame.
     */
    public void f1(){
        //获取文本框的内容
        textField.getText();
        //对字符串进行解析（获取你有用的信息）//1+1=
        //System.out.println(textField.getText());
        //1+1=
 
        //截取+号之前的数据，+号之后=号之前的数据
 
        int aa1 =(textField.getText()).indexOf("+");
        int aa2 =(textField.getText()).indexOf("-");
        int aa3 =(textField.getText()).indexOf("*");
        int aa4 =(textField.getText()).indexOf("/");
    //判断加减乘除
        if(-!=aa1){
            int a=(textField.getText()).indexOf("+");
            //int b=(textField.getText()).indexOf("+1");
            int d=(textField.getText()).indexOf("=");
            String str1=new String();
            String str2=new String();
            str1=(textField.getText()).substring(,a);
            str2=(textField.getText()).substring(a+,d);
 
            //截取到了之后，结果是个字符串，要进行转换，转换成int
            int e1=Integer.parseInt(str1);
            int e2=Integer.parseInt(str2);
            //执行操作，计算（用方法实现），返回值int
            gui1 ss=new gui1();
            ss.f(e1,e2);
            textField.setText(""+ss.f(e1,e2));
        }else if(-!=aa2){
            int a=(textField.getText()).indexOf("-");
            //int b=(textField.getText()).indexOf("+1");
            int d=(textField.getText()).indexOf("=");
            String str1=new String();
            String str2=new String();
            str1=(textField.getText()).substring(,a);
            str2=(textField.getText()).substring(a+,d);
 
            //截取到了之后，结果是个字符串，要进行转换，转换成int
            int e1=Integer.parseInt(str1);
            int e2=Integer.parseInt(str2);
            //执行操作，计算（用方法实现），返回值int
            gui1 ss=new gui1();
            ss.f4(e1,e2);
            textField.setText(""+ss.f4(e1,e2));
 
        }else if(-!=aa3){
            int a=(textField.getText()).indexOf("*");
            //int b=(textField.getText()).indexOf("+1");
            int d=(textField.getText()).indexOf("=");
            String str1=new String();
            String str2=new String();
            str1=(textField.getText()).substring(,a);
            str2=(textField.getText()).substring(a+,d);
 
            //截取到了之后，结果是个字符串，要进行转换，转换成int
            int e1=Integer.parseInt(str1);
            int e2=Integer.parseInt(str2);
            //执行操作，计算（用方法实现），返回值int
            gui1 ss=new gui1();
            ss.f2(e1,e2);
            textField.setText(""+ss.f2(e1,e2));
 
        }else if(-!=aa4){
            int a=(textField.getText()).indexOf("/");
            //int b=(textField.getText()).indexOf("+1");
            int d=(textField.getText()).indexOf("=");
            String str1=new String();
            String str2=new String();
            str1=(textField.getText()).substring(,a);
            str2=(textField.getText()).substring(a+,d);
 
            //截取到了之后，结果是个字符串，要进行转换，转换成int
            int e1=Integer.parseInt(str1);
            int e2=Integer.parseInt(str2);
            //执行操作，计算（用方法实现），返回值int
            gui1 ss=new gui1();
            ss.f3(e1,e2);
            textField.setText(""+ss.f3(e1,e2));
 
        }
        //输出结果，settext（string t），字符串，int转成成string，作为入参{String = 1+“1”}
        //String a1=(String)"a2";
        //输出结果：把之前的=号公式，要放在前面
 
    }
    public int f(int w,int r){
        int p=w+r;
        return p;
    }
    public int f4(int w,int r){
        int p=w-r;
        return p;
    }
    public int f2(int w,int r){
        int p=w*r;
        return p;
    }
    public int f3(int w,int r){
        int p=w/r;
        return p;
    }
    public gui1() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(, , , );
        contentPane = new JPanel();
        contentPane.setBackground(Color.LIGHT_GRAY);
        contentPane.setForeground(Color.GREEN);
        contentPane.setBorder(new EmptyBorder(, , , ));
        setContentPane(contentPane);
 
        JButton btnNewButton_8 = new JButton("m-");
        btnNewButton_8.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
            }
        });
        btnNewButton_8.setBackground(Color.ORANGE);
 
        JButton btnNewButton_6 = new JButton("+");
 
        JButton btnNewButton_18 = new JButton("*");
 
        JButton btnNewButton_20 = new JButton("\u221A  ");
 
        JButton btnNewButton_22 = new JButton("%");
 
        JButton btnNewButton_21 = new JButton("1/x");
 
        textField = new JTextField();
        textField.setColumns();
 
        JButton btnNewButton = new JButton("MC");
        btnNewButton.setBackground(Color.LIGHT_GRAY);
 
        JButton btnMr = new JButton("MR");
 
        JButton btnMs = new JButton("MS");
 
        JButton btnM = new JButton("M+");
 
        JButton btnM_1 = new JButton("M-");
 
        JButton button_4 = new JButton("<--");
        button_4.setFont(new Font("宋体", Font.PLAIN, ));
        button_4.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
            }
        });
 
        JButton button_5 = new JButton("");
        button_5.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"");
            }
        });
 
        JButton button_6 = new JButton("");
        button_6.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"");
            }
        });
 
        JButton button_7 = new JButton("");
        button_7.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                textField.setText(textField.getText()+"");
            }
        });
 
        JButton button_8 = new JButton("");
        button_8.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"");
                String inputValue = JOptionPane.showInputDialog("请输入密码：");
            }
        });
 
        JButton btnCe = new JButton("CE");
 
        JButton button_10 = new JButton("");
        button_10.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"");
            }
        });
 
        JButton button_11 = new JButton("");
        button_11.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"");
            }
        });
 
        JButton button_12 = new JButton("");
        button_12.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                textField.setText(textField.getText()+"");
            }
        });
 
        JButton btnC = new JButton("C");
        btnC.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText("");
            }
        });
 
        JButton button_14 = new JButton("\u00B1");
 
        JButton button_15 = new JButton("\u221A");
        button_15.setFont(new Font("宋体", Font.PLAIN, ));
        button_15.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                textField.setText(textField.getText()+"√");
            }
        });
 
        JButton button_16 = new JButton("");
        button_16.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"");
            }
        });
 
        JButton button_17 = new JButton("/");
        button_17.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"/");
            }
        });
 
        JButton button_18 = new JButton("%");
 
        JButton button_19 = new JButton("");
        button_19.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"");
            }
        });
 
        JButton button_20 = new JButton("*");
        button_20.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"*");
            }
        });
 
        JButton btnx = new JButton("1/x");
        btnx.setFont(new Font("微软雅黑", Font.PLAIN, ));
        btnx.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
            }
        });
 
        JButton button_22 = new JButton("");
        button_22.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"");
            }
        });
 
        JButton button_23 = new JButton("-");
        button_23.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"-");
            }
        });
 
        JButton button_24 = new JButton(".");
        button_24.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+".");
            }
        });
 
        JButton button_25 = new JButton("+");
        button_25.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                textField.setText(textField.getText()+"+");
                //JOptionPane.showConfirmDialog(null,
                //        "请选择", "titie", JOptionPane.YES_NO_OPTION);
 
            }
        });
 
        JButton button_26 = new JButton("=");
        button_26.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                //等于、、结果输出
 
                textField.setText(textField.getText()+"=");
                     f1();
            }
 
        });
        GroupLayout gl_contentPane = new GroupLayout(contentPane);
        gl_contentPane.setHorizontalGroup(
            gl_contentPane.createParallelGroup(Alignment.LEADING)
                .addGroup(gl_contentPane.createSequentialGroup()
                    .addGap()
                    .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                        .addGroup(gl_contentPane.createSequentialGroup()
                            .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING, false)
                                .addGroup(gl_contentPane.createSequentialGroup()
                                    .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                                        .addComponent(button_6, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                        .addComponent(button_7, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                                    .addPreferredGap(ComponentPlacement.RELATED)
                                    .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                                        .addComponent(button_11, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                        .addComponent(button_12, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)))
                                .addComponent(button_8, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                                .addGroup(gl_contentPane.createSequentialGroup()
                                    .addComponent(button_19, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                    .addPreferredGap(ComponentPlacement.RELATED)
                                    .addComponent(button_20, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                    .addPreferredGap(ComponentPlacement.RELATED)
                                    .addComponent(btnx, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                                .addGroup(gl_contentPane.createSequentialGroup()
                                    .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                                        .addGroup(gl_contentPane.createSequentialGroup()
                                            .addComponent(button_22, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                            .addPreferredGap(ComponentPlacement.RELATED)
                                            .addComponent(button_23, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                                        .addGroup(gl_contentPane.createSequentialGroup()
                                            .addComponent(button_24, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                            .addPreferredGap(ComponentPlacement.RELATED)
                                            .addComponent(button_25, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)))
                                    .addPreferredGap(ComponentPlacement.RELATED)
                                    .addComponent(button_26, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)))
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING)
                                .addGroup(gl_contentPane.createSequentialGroup()
                                    .addGap()
                                    .addComponent(btnNewButton_6, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                    .addPreferredGap(ComponentPlacement.UNRELATED)
                                    .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                                        .addComponent(btnNewButton_21, GroupLayout.DEFAULT_SIZE, , Short.MAX_VALUE)
                                        .addComponent(btnNewButton_22, GroupLayout.DEFAULT_SIZE, , Short.MAX_VALUE)
                                        .addComponent(btnNewButton_20, GroupLayout.DEFAULT_SIZE, , Short.MAX_VALUE))
                                    .addGap()
                                    .addComponent(btnNewButton_18))
                                .addGroup(gl_contentPane.createSequentialGroup()
                                    .addGap()
                                    .addComponent(btnNewButton_8)
                                    .addGap())))
                        .addGroup(gl_contentPane.createSequentialGroup()
                            .addComponent(btnNewButton, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(btnMr, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(btnMs, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(btnM, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(btnM_1, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                        .addComponent(textField, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                        .addGroup(gl_contentPane.createSequentialGroup()
                            .addComponent(button_4, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(btnCe, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(btnC, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(button_14, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(button_15, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                        .addGroup(gl_contentPane.createSequentialGroup()
                            .addComponent(button_5, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(button_10, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(button_16, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(button_17, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(button_18, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)))
                    .addContainerGap())
        );
        gl_contentPane.setVerticalGroup(
            gl_contentPane.createParallelGroup(Alignment.TRAILING)
                .addGroup(gl_contentPane.createSequentialGroup()
                    .addContainerGap()
                    .addComponent(textField, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                    .addPreferredGap(ComponentPlacement.UNRELATED)
                    .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                        .addComponent(btnNewButton, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                        .addComponent(btnMr, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                        .addComponent(btnMs, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                        .addComponent(btnM, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                        .addComponent(btnM_1, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                    .addPreferredGap(ComponentPlacement.RELATED)
                    .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                        .addComponent(button_4, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                        .addComponent(btnCe, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                        .addComponent(btnC, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                        .addComponent(button_14, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                        .addComponent(button_15, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                    .addPreferredGap(ComponentPlacement.RELATED)
                    .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                        .addGroup(gl_contentPane.createSequentialGroup()
                            .addGap()
                            .addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING)
                                .addGroup(gl_contentPane.createSequentialGroup()
                                    .addComponent(btnNewButton_20)
                                    .addPreferredGap(ComponentPlacement.RELATED)
                                    .addComponent(btnNewButton_22)
                                    .addPreferredGap(ComponentPlacement.RELATED))
                                .addComponent(btnNewButton_8, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                            .addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
                                .addComponent(btnNewButton_18)
                                .addComponent(btnNewButton_21))
                            .addGap()
                            .addComponent(btnNewButton_6))
                        .addGroup(gl_contentPane.createSequentialGroup()
                            .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                                .addGroup(gl_contentPane.createSequentialGroup()
                                    .addComponent(button_5, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                    .addPreferredGap(ComponentPlacement.RELATED)
                                    .addComponent(button_6, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                                .addGroup(gl_contentPane.createSequentialGroup()
                                    .addComponent(button_10, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                    .addPreferredGap(ComponentPlacement.RELATED)
                                    .addComponent(button_11, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                                .addGroup(gl_contentPane.createSequentialGroup()
                                    .addComponent(button_16, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                    .addPreferredGap(ComponentPlacement.RELATED)
                                    .addComponent(button_19, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                                .addGroup(gl_contentPane.createSequentialGroup()
                                    .addComponent(button_17, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                    .addPreferredGap(ComponentPlacement.RELATED)
                                    .addComponent(button_20, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)))
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                                .addComponent(button_12, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                .addComponent(button_7, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                .addComponent(button_22, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                .addComponent(button_23, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE))
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
                                .addComponent(button_25, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                .addComponent(button_24, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                                .addComponent(button_8, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)))
                        .addGroup(gl_contentPane.createSequentialGroup()
                            .addComponent(button_18, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(btnx, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)
                            .addPreferredGap(ComponentPlacement.RELATED)
                            .addComponent(button_26, GroupLayout.PREFERRED_SIZE, , GroupLayout.PREFERRED_SIZE)))
                    .addGap())
        );
        contentPane.setLayout(gl_contentPane);
    }
}

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