Java 设置JLAbel'；正在加载的文本
我试图显示JFrame应用程序在JLabel组件上运行的操作系统。我可以很容易地检测到操作系统类型。如何将其发送到gui上的JLabel以显示操作系统的名称？下面您可以看到我的GUI和代码。我需要在JLabel4组件上显示操作系统的名称。（在GUI中显示为“…”） 我的GUI： Janus.javaJava 设置JLAbel'；正在加载的文本,java,swing,user-interface,jframe,jlabel,Java,Swing,User Interface,Jframe,Jlabel,我试图显示JFrame应用程序在JLabel组件上运行的操作系统。我可以很容易地检测到操作系统类型。如何将其发送到gui上的JLabel以显示操作系统的名称？下面您可以看到我的GUI和代码。我需要在JLabel4组件上显示操作系统的名称。（在GUI中显示为“…”） 我的GUI： Janus.java /* * To change this license header, choose License Headers in Project Properties. * To change th
/*
* 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 janus;
import my.janus.JanusUI;
/**
*
* @author Timur
*/
public class Janus {
/**
* @param args the command line arguments
*/
private static String OS = System.getProperty("os.name").toLowerCase();
public Janus(){
JanusUI gui = new JanusUI();
gui.setVisible(true);
detectOS();
}
public static void main(String[] args) {
// TODO code application logic here
Janus obj = new Janus();
}
// this one prints OS type
public static void detectOS(){
if(isMac()){
System.out.println("operating system detected as Mac");
}
else if(isWindows()){
System.out.println("operating system detected as Windows");
}
else if(isLinux()){
System.out.println("operating system detected as Linux");
}
else if(isSolaris()){
System.out.println("operating system detected as Solaris");
}
else {
System.out.println("isMac() returned false");
}
}
// detecting os as mac
public static boolean isMac(){
return (OS.indexOf("mac") >= 0);
}
// detecting os as windows
public static boolean isWindows(){
return (OS.indexOf("mac") >= 0);
}
// detecting os as unix-linux
public static boolean isLinux(){
return (OS.indexOf("mac") >= 0);
}
// detecting os as solaris
public static boolean isSolaris(){
return (OS.indexOf("mac") >= 0);
}
}
/*
* 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 my.janus;
/**
*
* @author Timur
*/
public class JanusUI extends javax.swing.JFrame {
/**
* Creates new form JanusUI
*/
public JanusUI() {
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() {
jLabel1 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jTextField2 = new javax.swing.JTextField();
jTextField3 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText("Enter time:");
jButton1.setText("Start");
jButton2.setText("Pause");
jButton3.setText("Clear");
jButton4.setText("Lock");
jLabel2.setText("Remaining Time:");
jLabel3.setText("Your OS:");
jLabel4.setText("...");
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(22, 22, 22)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jLabel4, javax.swing.GroupLayout.PREFERRED_SIZE, 88, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 39, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(jLabel2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 39, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 39, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 1, Short.MAX_VALUE)
.addComponent(jButton1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jButton3, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton4, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addContainerGap(13, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(30, 30, 30)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton1)
.addComponent(jButton3))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton2)
.addComponent(jButton4)
.addComponent(jLabel2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(jLabel4))
.addContainerGap(177, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(JanusUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(JanusUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(JanusUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(JanusUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new JanusUI().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
private javax.swing.JTextField jTextField3;
// End of variables declaration
}
/*
* 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 janus;
import my.janus.JanusUI;
/**
*
* @author Timur
*/
public class Janus {
/**
* @param args the command line arguments
*/
private static String OS = System.getProperty("os.name").toLowerCase();
public Janus(){
JanusUI gui = new JanusUI();
gui.setVisible(true);
detectOS();
}
public static void main(String[] args) {
// TODO code application logic here
Janus obj = new Janus();
}
// this one prints OS type
public static void detectOS(){
if(isMac()){
System.out.println("operating system detected as Mac");
}
else if(isWindows()){
System.out.println("operating system detected as Windows");
}
else if(isLinux()){
System.out.println("operating system detected as Linux");
}
else if(isSolaris()){
System.out.println("operating system detected as Solaris");
}
else {
System.out.println("isMac() returned false");
}
}
// detecting os as mac
public static boolean isMac(){
return (OS.indexOf("mac") >= 0);
}
// detecting os as windows
public static boolean isWindows(){
return (OS.indexOf("mac") >= 0);
}
// detecting os as unix-linux
public static boolean isLinux(){
return (OS.indexOf("mac") >= 0);
}
// detecting os as solaris
public static boolean isSolaris(){
return (OS.indexOf("mac") >= 0);
}
}
/*
* 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 my.janus;
/**
*
* @author Timur
*/
public class JanusUI extends javax.swing.JFrame {
/**
* Creates new form JanusUI
*/
public JanusUI() {
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() {
jLabel1 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jTextField2 = new javax.swing.JTextField();
jTextField3 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText("Enter time:");
jButton1.setText("Start");
jButton2.setText("Pause");
jButton3.setText("Clear");
jButton4.setText("Lock");
jLabel2.setText("Remaining Time:");
jLabel3.setText("Your OS:");
jLabel4.setText("...");
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(22, 22, 22)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jLabel4, javax.swing.GroupLayout.PREFERRED_SIZE, 88, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 39, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(jLabel2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, 39, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, 39, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 1, Short.MAX_VALUE)
.addComponent(jButton1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jButton3, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton4, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addContainerGap(13, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(30, 30, 30)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jTextField3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton1)
.addComponent(jButton3))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton2)
.addComponent(jButton4)
.addComponent(jLabel2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel3)
.addComponent(jLabel4))
.addContainerGap(177, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(JanusUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(JanusUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(JanusUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(JanusUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new JanusUI().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JTextField jTextField1;
private javax.swing.JTextField jTextField2;
private javax.swing.JTextField jTextField3;
// End of variables declaration
}
/*
*要更改此许可证标题，请在“项目属性”中选择“许可证标题”。
*要更改此模板文件，请选择工具|模板
*然后在编辑器中打开模板。
*/
包装我的janus；
/**
*
*@作者帖木儿
*/
公共类JanusUI扩展了javax.swing.JFrame{
/**
*创建新表单JanusUI
*/
公共JanusUI（）{
初始化组件（）；
}
/**
*从构造函数中调用此方法来初始化表单。
*警告：不要修改此代码。此方法的内容始终为
*由表单编辑器重新生成。
*/
@抑制警告（“未选中”）
//
私有组件（）{
jLabel1=newjavax.swing.JLabel（）；
jTextField1=newjavax.swing.JTextField（）；
jTextField2=newjavax.swing.JTextField（）；
jTextField3=newjavax.swing.JTextField（）；
jButton1=newjavax.swing.JButton（）；
jButton2=newjavax.swing.JButton（）；
jButton3=newjavax.swing.JButton（）；
jButton4=newjavax.swing.JButton（）；
jLabel2=newjavax.swing.JLabel（）；
jLabel3=newjavax.swing.JLabel（）；
jLabel4=newjavax.swing.JLabel（）；
setDefaultCloseOperation（javax.swing.WindowConstants.EXIT_ON_CLOSE）；
jLabel1.setText（“输入时间：”）；
jButton1.setText（“开始”）；
jButton2.setText（“暂停”）；
jButton3.setText（“清除”）；
jButton4.setText（“锁”）；
jLabel2.setText（“剩余时间：”）；
setText（“您的操作系统：”）；
jLabel4.setText（“…”）；
javax.swing.GroupLayout=newjavax.swing.GroupLayout（getContentPane（））；
getContentPane（）.setLayout（布局）；
layout.setHorizontalGroup(
createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING）
.addGroup（layout.createSequentialGroup（）
.addGap（22,22,22）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING）
.addGroup（layout.createSequentialGroup（）
.addComponent（jLabel3）
.addPreferredGap（javax.swing.LayoutStyle.ComponentPlacement.RELATED）
.addComponent（jLabel4，javax.swing.GroupLayout.PREFERRED_SIZE，88，javax.swing.GroupLayout.PREFERRED_SIZE））
.addGroup（layout.createSequentialGroup（）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING）
.addGroup（layout.createSequentialGroup（）
.addComponent（jLabel1）
.addPreferredGap（javax.swing.LayoutStyle.ComponentPlacement.RELATED）
.addComponent（jTextField1，javax.swing.GroupLayout.PREFERRED_SIZE，39，javax.swing.GroupLayout.PREFERRED_SIZE））
.addComponent（jLabel2））
.addPreferredGap（javax.swing.LayoutStyle.ComponentPlacement.RELATED）
.addComponent（jTextField2，javax.swing.GroupLayout.PREFERRED_SIZE，39，javax.swing.GroupLayout.PREFERRED_SIZE）
.addPreferredGap（javax.swing.LayoutStyle.ComponentPlacement.RELATED）
.addComponent（jTextField3，javax.swing.GroupLayout.PREFERRED_SIZE，39，javax.swing.GroupLayout.PREFERRED_SIZE）
.addPreferredGap（javax.swing.LayoutStyle.ComponentPlacement.RELATED）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING，false）
.addComponent（jButton2，javax.swing.GroupLayout.PREFERRED_SIZE，1，Short.MAX_值）
.addComponent（jButton1，javax.swing.GroupLayout.DEFAULT_SIZE，javax.swing.GroupLayout.DEFAULT_SIZE，Short.MAX_VALUE））
.addPreferredGap（javax.swing.LayoutStyle.ComponentPlacement.RELATED）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING）
.addComponent（jButton3，javax.swing.GroupLayout.PREFERRED_SIZE，75，javax.swing.GroupLayout.PREFERRED_SIZE）
.addComponent（jButton4，javax.swing.GroupLayout.PREFERRED_SIZE，75，javax.swing.GroupLayout.PREFERRED_SIZE）））
.addContainerGap（13，简称最大值））
);
layout.setVerticalGroup(
createParallelGroup（javax.swing.GroupLayout.Alignment.LEADING）
.addGroup（layout.createSequentialGroup（）
.addGap（30,30,30）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.BASELINE）
.addComponent（jLabel1）
.addComponent（jTextField1，javax.swing.GroupLayout.PREFERRED\u SIZE，javax.swing.GroupLayout.DEFAULT\u SIZE，javax.swing.GroupLayout.PREFERRED\u SIZE）
.addComponent（jTextField2，javax.swing.GroupLayout.PREFERRED\u SIZE，javax.swing.GroupLayout.DEFAULT\u SIZE，javax.swing.GroupLayout.PREFERRED\u SIZE）
.addComponent（jTextField3，javax.swing.GroupLayout.PREFERRED_SIZE，javax.swing.GroupLayout.DEFAULT_SIZE，javax.swing.GroupLayout.PREFERRED_SIZE）
.addComponent（jButton1）
.addComponent（jButton3））
.addPreferredGap（javax.swing.LayoutStyle.ComponentPlacement.RELATED）
.addGroup（layout.createParallelGroup（javax.swing.GroupLayout.Alignment.BASELINE）
.addComponent（jButton2）
public Janus(){
JanusUI gui = new JanusUI();
gui.setVisible(true);
String os = detectOS();
gui.setOSText(os);
}
public void setOs(String OS) {
this.jLabel4.setText(OS);
}
public Janus(){
JanusUI gui = new JanusUI();
gui.setOs(OS);
gui.setVisible(true);
detectOS();
}