Java GUI-华氏到摄氏
现在,在你把它标记为复制品之前,请听我说完。我已经看了另外两个类似的问题 由于这是一个GUI Java程序,它因用户而异,在我的特定情况下,我只尝试将华氏温度转换为摄氏温度,而完全没有其他功能 这是我的密码:Java GUI-华氏到摄氏,java,user-interface,error-handling,Java,User Interface,Error Handling,现在,在你把它标记为复制品之前,请听我说完。我已经看了另外两个类似的问题 由于这是一个GUI Java程序,它因用户而异,在我的特定情况下,我只尝试将华氏温度转换为摄氏温度,而完全没有其他功能 这是我的密码: package my.tempconvert; public class TempConvertUI extends javax.swing.JFrame { public TempConvertUI() { initComponents();
package my.tempconvert;
public class TempConvertUI extends javax.swing.JFrame
{
public TempConvertUI()
{
initComponents();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
Farenheit = new javax.swing.JTextField();
jLabel2 = new javax.swing.JLabel();
Celsius = new javax.swing.JTextField();
CalcButton = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText("Farenheit");
Farenheit.setText("Insert Farenheit Value");
Farenheit.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
FarenheitActionPerformed(evt);
}
});
jLabel2.setText("Celsius");
Celsius.setText("Celsius Will Appear Here");
CalcButton.setText("Calculate");
CalcButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
CalcButtonActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 64, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(Farenheit)
.addComponent(Celsius, javax.swing.GroupLayout.DEFAULT_SIZE, 149, Short.MAX_VALUE))
.addGap(0, 183, Short.MAX_VALUE))
.addGroup(layout.createSequentialGroup()
.addGap(33, 33, 33)
.addComponent(CalcButton, javax.swing.GroupLayout.PREFERRED_SIZE, 125, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(Farenheit, javax.swing.GroupLayout.DEFAULT_SIZE, 30, Short.MAX_VALUE)
.addComponent(jLabel1, 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, false)
.addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(Celsius, javax.swing.GroupLayout.DEFAULT_SIZE, 30, Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(CalcButton)
.addGap(0, 205, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void FarenheitActionPerformed(java.awt.event.ActionEvent evt) {
}
private void CalcButtonActionPerformed(java.awt.event.ActionEvent evt) {
float num1, result;
num1 = Float.parseFloat(Farenheit.getText());
result = (((float) 5/9) * (num1 - 32));
Celsius.setText(String.valueOf(result));
}
public static void main(String args[])
{
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(TempConvertUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(TempConvertUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(TempConvertUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(TempConvertUI.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 TempConvertUI().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton CalcButton;
private javax.swing.JTextField Celsius;
private javax.swing.JTextField Farenheit;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
// End of variables declaration
}
包my.tempconvert;
公共类TempConvertUI扩展了javax.swing.JFrame
{
公共TempConvertUI()
{
初始化组件();
}
@抑制警告(“未选中”)
//
私有组件(){
jLabel1=newjavax.swing.JLabel();
Farenheit=newjavax.swing.JTextField();
jLabel2=newjavax.swing.JLabel();
Celsius=newjavax.swing.JTextField();
CalcButton=newjavax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jLabel1.setText(“Farenheit”);
Farenheit.setText(“插入Farenheit值”);
addActionListener(新java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent evt){
已执行的Farenheitaction(evt);
}
});
jLabel2.setText(“摄氏度”);
setText(“此处将显示摄氏度”);
设置文本(“计算”);
addActionListener(新java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent evt){
执行计算按钮操作(evt);
}
});
javax.swing.GroupLayout=newjavax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(布局);
layout.setHorizontalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING,false)
.addComponent(jLabel2,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u值)
.addComponent(jLabel1,javax.swing.GroupLayout.DEFAULT_SIZE,64,Short.MAX_VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING,false)
.addComponent(Farenheit)
.addComponent(摄氏度,javax.swing.GroupLayout.DEFAULT\u大小,149,短.MAX\u值))
.addGap(0,183,短。最大值))
.addGroup(layout.createSequentialGroup()
.addGap(33,33,33)
.addComponent(CalcButton,javax.swing.GroupLayout.PREFERRED_SIZE,125,javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u VALUE))
);
layout.setVerticalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.training,false)
.addComponent(Farenheit,javax.swing.GroupLayout.DEFAULT\u SIZE,30,Short.MAX\u值)
.addComponent(jLabel1,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u VALUE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING,false)
.addComponent(jLabel2,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u值)
.addComponent(摄氏度,javax.swing.GroupLayout.DEFAULT\u大小,30,短.MAX\u值))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(CalcButton)
.addGap(0,205,短。最大值))
);
包装();
}//
private void FarenheitationPerformed(java.awt.event.ActionEvent evt){
}
私有void CalcButtoActionPerformed(java.awt.event.ActionEvent evt){
浮点num1,结果;
num1=Float.parseFloat(Farenheit.getText());
结果=((浮动)5/9)*(num1-32));
setText(String.valueOf(result));
}
公共静态void main(字符串参数[])
{
试一试{
for(javax.swing.UIManager.LookAndFeelInfo:javax.swing.UIManager.getInstalledLookAndFeels()){
if(“Nimbus”.equals(info.getName())){
setLookAndFeel(info.getClassName());
打破
}
}
}捕获(ClassNotFoundException ex){
getLogger(TempConvertUI.class.getName()).log(java.util.logging.Level.severy,null,ex);
}catch(实例化异常){
getLogger(TempConvertUI.class.getName()).log(java.util.logging.Level.severy,null,ex);
}捕获(非法访问例外){
getLogger(TempConvertUI.class.getName()).log(java.util.logging.Level.severy,null,ex);
}catch(javax.swing.UnsupportedLookAndFeelException ex){
getLogger(TempConvertUI.class.getName()).log(java.util.logging.Level.severy,null,ex);
}
//
/*创建并显示表单*/
invokeLater(new Runnable()){
公开募捐{
新建TempConvertUI().setVisible(true);
}
});
}
//变量声明-不修改
num1 = Float.parseFloat(Farenheit.getText());
result = (((float) 5/9) * (num1 - 32));
Celsius.setText(String.valueOf(result));
result = ((5/9) * (num1 - 32));
result = 5*(num1-32)/9.0;