NetBeans实现简易计算器

最新推荐文章于 2020-05-12 11:20:14 发布

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最新推荐文章于 2020-05-12 11:20:14 发布 · 1.4k 阅读

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CC 4.0 BY-SA版权

文章标签：

#java #netbeans #计算器

本文介绍了如何利用NetBeans IDE创建一个简单的Java计算器应用。通过导入必要的库并编写基础代码，实现了基本的加减乘除功能。

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import java.util.logging.Level;

import java.util.logging.Logger;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;

/**
*
* @author Xu xingrui
*/
public class NewJFrame extends javax.swing.JFrame {

/**
* Creates new form NewJFrame
*/



public NewJFrame() {
initComponents();
}

/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

jLayeredPane1 = new javax.swing.JLayeredPane();
jPanel1 = new javax.swing.JPanel();
jButton1 = new javax.swing.JButton();
jTextField1 = new javax.swing.JTextField();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();
jButton6 = new javax.swing.JButton();
jButton7 = new javax.swing.JButton();
jButton8 = new javax.swing.JButton();
jButton9 = new javax.swing.JButton();
jButton0 = new javax.swing.JButton();
jButtondot = new javax.swing.JButton();
jButtonadd = new javax.swing.JButton();
jButtonsub = new javax.swing.JButton();
jButtonmulp = new javax.swing.JButton();
jButtondiv = new javax.swing.JButton();
jButtonequal = new javax.swing.JButton();
jButtonclear = new javax.swing.JButton();
jButtonback = new javax.swing.JButton();
jSeparator1 = new javax.swing.JSeparator();
jPanel3 = new javax.swing.JPanel();
jLabel2 = new javax.swing.JLabel();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("计算器");
setResizable(false);

jPanel1.setOpaque(false);
jPanel1.setPreferredSize(new java.awt.Dimension(400, 300));

jButton1.setText("1");
jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButton1MouseReleased(evt);
}
});

jTextField1.setEditable(false);
jTextField1.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
jTextField1.setText("0");

jButton2.setText("2");
jButton2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButton2MouseReleased(evt);
}
});

jButton3.setText("3");
jButton3.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButton3MouseReleased(evt);
}
});

jButton4.setText("4");
jButton4.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButton4MouseReleased(evt);
}
});

jButton5.setText("5");
jButton5.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButton5MouseReleased(evt);
}
});

jButton6.setText("6");
jButton6.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButton6MouseReleased(evt);
}
});

jButton7.setText("7");
jButton7.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButton7MouseReleased(evt);
}
});

jButton8.setText("8");
jButton8.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButton8MouseReleased(evt);
}
});

jButton9.setText("9");
jButton9.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButton9MouseReleased(evt);
}
});

jButton0.setText("0");
jButton0.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButton0MouseReleased(evt);
}
});

jButtondot.setText(".");
jButtondot.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButtondotMouseReleased(evt);
}
});

jButtonadd.setText("+");
jButtonadd.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButtonaddMouseReleased(evt);
}
});

jButtonsub.setText("-");
jButtonsub.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButtonsubMouseReleased(evt);
}
});

jButtonmulp.setText("*");
jButtonmulp.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
jButtonmulpMouseReleased(evt);
}
});

jButtondiv.setText("/");
jButtondiv.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(