主类
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import util.MyLookAndFeel;
import util.UiUtil;
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author 123
*/
public class Test01 extends javax.swing.JFrame {
/**
* Creates new form Test01
*/
public Test01() {
initComponents();
init();
}
/**
* 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() {
jButton1 = new javax.swing.JButton();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
aa2 = new javax.swing.JComboBox<>();
aa1 = new java.awt.TextField();
aa3 = new java.awt.TextField();
aa4 = new java.awt.TextField();
a4 = new java.awt.Button();
jButton1.setText("jButton1");
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText("第一个操作数");
jLabel2.setText("第二个操作数");
jLabel3.setText("结果");
jLabel4.setText("=");
aa2.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "+", "-", "*", "/" }));
aa2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
aa2ActionPerformed(evt);
}
});
aa1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
aa1ActionPerformed(evt);
}
});
aa3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
aa3ActionPerformed(evt);
}
});
aa4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
aa4ActionPerformed(evt);
}
});
a4.setCursor(new java.awt.Cursor(java.awt.Cursor.HAND_CURSOR));
a4.setLabel("计算");
a4.setName(""); // NOI18N
a4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
a4ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGap(66, 66, 66)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(layout.createSequentialGroup()
.addGap(5, 5, 5)
.addComponent(aa1, javax.swing.GroupLayout.PREFERRED_SIZE, 78, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(aa2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(aa3, javax.swing.GroupLayout.PREFERRED_SIZE, 81, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel2)))
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(65, 65, 65)
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 69, Short.MAX_VALUE))
.addGroup(layout.createSequentialGroup()
.addGap(15, 15, 15)
.addComponent(jLabel4, javax.swing.GroupLayout.PREFERRED_SIZE, 20, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(aa4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGap(11, 11, 11)))
.addGap(48, 48, 48))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(a4, javax.swing.GroupLayout.PREFERRED_SIZE, 76, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(39, 39, 39))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(51, 51, 51)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel2)
.addComponent(jLabel3)))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel1)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(aa2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(aa4, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(aa3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel4)))
.addComponent(aa1, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 25, Short.MAX_VALUE)
.addComponent(a4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(20, 20, 20))
);
a4.getAccessibleContext().setAccessibleDescription("");
pack();
}// </editor-fold>
private void aa2ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
private void aa4ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
private void aa1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
private void aa3ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
private void a4ActionPerformed(java.awt.event.ActionEvent evt) {
int n1 = Integer.parseInt(this.aa1.getText().trim());
String s = this.aa2.getSelectedItem().toString();
int n2 = Integer.parseInt(this.aa3.getText().trim());
if(s.equals("+")){
aa4.setText(String.valueOf(n1+n2));
}else if(s.equals("-")){
aa4.setText(String.valueOf(n1-n2));
}else if(s.equals("*")){
aa4.setText(String.valueOf(n1*n2));
}else{
aa4.setText(String.format("%.2f", (double)n1/n2));
}
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
try {
/* Set the Nimbus look and feel */
UIManager.setLookAndFeel(MyLookAndFeel.JTATTOO_BERNSTEIN);
} catch (ClassNotFoundException ex) {
Logger.getLogger(Test01.class.getName()).log(Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
Logger.getLogger(Test01.class.getName()).log(Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
Logger.getLogger(Test01.class.getName()).log(Level.SEVERE, null, ex);
} catch (UnsupportedLookAndFeelException ex) {
Logger.getLogger(Test01.class.getName()).log(Level.SEVERE, null, ex);
}
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Test01().setVisible(true);
}
});
}
// Variables declaration - do not modify
private java.awt.Button a4;
private java.awt.TextField aa1;
private javax.swing.JComboBox<String> aa2;
private java.awt.TextField aa3;
private java.awt.TextField aa4;
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
// End of variables declaration
private void init() {
this.setTitle("四则运算");
this.setResizable(false); //固定窗口大小
new UiUtil().setFrameImage(this);
new UiUtil().setFrameCenter(this);
}
}
其中调用的工具类
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package util;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Image;
import java.awt.Toolkit;
/**
*
* @author 123
*/
public class UiUtil {
//设置窗体图标
public void setFrameImage(Frame tf){
Toolkit tl = Toolkit.getDefaultToolkit();
Image image = tl.getImage("src\\img\\2.jpg");
tf.setIconImage(image);
}
public void setFrameCenter(Frame tf){
Toolkit tl = Toolkit.getDefaultToolkit();
Dimension d = tl.getScreenSize();
int w = (int)((d.getWidth()-tf.getWidth())/2);
int h = (int)((d.getHeight()-tf.getHeight())/2);
tf.setLocation(w, h);
}
}
我使用的皮肤类
package util;
public abstract class MyLookAndFeel {
public static String SYS_METAL = "javax.swing.plaf.metal.MetalLookAndFeel";
public static String SYS_NIMBUS = "com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel";
public static String SYS_CDE_MOTIF = "com.sun.java.swing.plaf.motif.MotifLookAndFeel";
public static String SYS_WINDOWS = "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
public static String SYS_WINDOWS_CLASSIC = "com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeel";
public static String JTATTOO_ACRYL = "com.jtattoo.plaf.acryl.AcrylLookAndFeel";
public static String JTATTOO_AERO = "com.jtattoo.plaf.aero.AeroLookAndFeel";
public static String JTATTOO_ALUMINUM = "com.jtattoo.plaf.aluminium.AluminiumLookAndFeel";
public static String JTATTOO_BERNSTEIN = "com.jtattoo.plaf.bernstein.BernsteinLookAndFeel";
public static String JTATTOO_FAST = "com.jtattoo.plaf.fast.FastLookAndFeel";
public static String JTATTOO_HIFI = "com.jtattoo.plaf.hifi.HiFiLookAndFeel";
public static String JTATTOO_LUNA = "com.jtattoo.plaf.luna.LunaLookAndFeel";
public static String JTATTOO_MCWIN = "com.jtattoo.plaf.mcwin.McWinLookAndFeel";
public static String JTATTOO_MINT = "com.jtattoo.plaf.mint.MintLookAndFeel";
public static String JTATTOO_NOIRE = "com.jtattoo.plaf.noire.NoireLookAndFeel";
public static String JTATTOO_SMART = "com.jtattoo.plaf.smart.SmartLookAndFeel";
public static String LIQUIDINF = "com.birosoft.liquid.LiquidLookAndFeel";
}
实现效果
