Netbeans 8.0上的更改计算器GUI程序在我第一次编写时运行，但在将文件从我的桌面复制到笔记本电脑后，“运行文件”按钮显示为灰色。关于如何让它再次运行的任何想法？
以下是代码：
package changecalculator;
public class CoinChange extends javax.swing.JFrame {
//Variablezs
int centsAmount, cents, nickels, dimes, quarters;
//Checking for button clicks
public CoinChange() {
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() {
jButton0 = new javax.swing.JButton();
clear = new javax.swing.JButton();
jButton7 = new javax.swing.JButton();
jButton8 = new javax.swing.JButton();
jButton9 = new javax.swing.JButton();
jButton4 = new javax.swing.JButton();
jButton5 = new javax.swing.JButton();
jButton6 = new javax.swing.JButton();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
calculateChange = new javax.swing.JButton();
display = new javax.swing.JFormattedTextField();
jScrollPane1 = new javax.swing.JScrollPane();
display2 = new javax.swing.JTextArea();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setBackground(new java.awt.Color(255, 255, 51));
jButton0.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
jButton0.setText("0");
jButton0.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
jButton0.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton0ActionPerformed(evt);
}
});
clear.setFont(new java.awt.Font("Arial", 1, 24)); // NOI18N
clear.setText("CLEAR");
clear.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
clear.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
clearActionPerformed(evt);
}
});
jButton7.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
jButton7.setText("7");
jButton7.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
jButton7.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton7ActionPerformed(evt);
}
});
jButton8.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
jButton8.setText("8");
jButton8.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
jButton8.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton8ActionPerformed(evt);
}
});
jButton9.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
jButton9.setText("9");
jButton9.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
jButton9.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton9ActionPerformed(evt);
}
});
jButton4.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
jButton4.setText("4");
jButton4.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
jButton4.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton4ActionPerformed(evt);
}
});
jButton5.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
jButton5.setText("5");
jButton5.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
jButton5.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton5ActionPerformed(evt);
}
});
jButton6.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
jButton6.setText("6");
jButton6.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
jButton6.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton6ActionPerformed(evt);
}
});
jButton1.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
jButton1.setText("1");
jButton1.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jButton2.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
jButton2.setText("2");
jButton2.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jButton3.setFont(new java.awt.Font("Arial", 1, 36)); // NOI18N
jButton3.setText("3");
jButton3.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
jButton3.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton3ActionPerformed(evt);
}
});
calculateChange.setFont(new java.awt.Font("Arial", 1, 24)); // NOI18N
calculateChange.setText("Calculate Change");
calculateChange.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED));
calculateChange.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
calculateChangeActionPerformed(evt);
}
});
display.setEditable(false);
display.setAutoscrolls(false);
display.setFont(new java.awt.Font("Cambria", 0, 16)); // NOI18N
display.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
displayActionPerformed(evt);
}
});
display2.setEditable(false);
display2.setColumns(20);
display2.setFont(new java.awt.Font("Arial", 0, 17)); // NOI18N
display2.setRows(5);
display2.setText("Please enter an amount of \nmoney in cents that is less than \n100:");
jScrollPane1.setViewportView(display2);
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()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 274, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addGap(38, 38, 38)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(calculateChange, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(display)
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(29, 29, 29)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(0, 8, Short.MAX_VALUE)
.addComponent(jButton8, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(33, 33, 33)
.addComponent(jButton9, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(8, 8, 8)
.addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton3, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
.addGap(105, 105, 105)
.addComponent(jButton5, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton6, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jButton0, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton4, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton7, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(clear, javax.swing.GroupLayout.PREFERRED_SIZE, 169, javax.swing.GroupLayout.PREFERRED_SIZE)))))
.addGap(39, 39, 39))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(33, Short.MAX_VALUE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 106, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(display, javax.swing.GroupLayout.PREFERRED_SIZE, 32, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(12, 12, 12)
.addComponent(calculateChange, javax.swing.GroupLayout.PREFERRED_SIZE, 51, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton3, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton4, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton5, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton6, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jButton7, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton8, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jButton9, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jButton0, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(clear, javax.swing.GroupLayout.PREFERRED_SIZE, 68, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap())
);
pack();
}// </editor-fold>
private void clearActionPerformed(java.awt.event.ActionEvent evt) {
display.setText("");
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(display.getText()+jButton1.getText());
}
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(display.getText()+jButton2.getText());
}
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(display.getText()+jButton3.getText());
}
private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(display.getText()+jButton4.getText());
}
private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(display.getText()+jButton5.getText());
}
private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(display.getText()+jButton6.getText());
}
private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(display.getText()+jButton7.getText());
}
private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(display.getText()+jButton8.getText());
}
private void jButton9ActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(display.getText()+jButton9.getText());
}
private void jButton0ActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(display.getText()+jButton0.getText());
}
private void calculateChangeActionPerformed(java.awt.event.ActionEvent evt) {
centsAmount = (Integer.parseInt(String.valueOf(display.getText())));
quarters = centsAmount/25;
dimes = (centsAmount-quarters*25)/10;
nickels = ((centsAmount%25)%10)/5;
cents = (centsAmount%10)%5;
while (centsAmount >= 100 || centsAmount < 1){
//display2.setText("");
display2.setText("Please enter an amount in cents that is less than 100 and is greater than 0:");
//Making sure that the amount entered is less than 100 and greater than 0.
centsAmount = (Integer.parseInt(String.valueOf(display.getText())));
//Asking the user to try again.
quarters = centsAmount/25;
dimes = (centsAmount-quarters*25)/10;
nickels = ((centsAmount%25)%10)/5;
cents = (centsAmount%10)%5;
//Recalculating
}
display2.setText(centsAmount + " cents: ");
//First printing out the amount entered
//QUARTERS
if (quarters > 1 && (dimes != 0 || nickels != 0 || cents != 0)){
display2.setText(quarters + " quarters, ");
//Printing out "quarters," if the number of quarters is greater than 1 and it's not the last coin to be displayed.
}
else if (quarters > 1 && dimes == 0 && nickels == 0 && cents == 0){
display2.setText(quarters + " quarters.");
//Printing out "quarters." if the number of quarters is greater than 1 and it's the only coin to be displayed.
}
else if (quarters == 1 && (dimes != 0 || nickels != 0 || cents != 0)){
display2.setText(quarters + " quarter, ");
//Printing out "quarter," if there is only 1 quarter and it's not the last coin to be displayed.
}
else if (quarters == 1 && dimes == 0 && nickels == 0 && cents == 0){
display2.setText(quarters + " quarter.");
//Printing out "quarter." if there is only 1 quarter and it's the only coin to be displayed.
}
//THIS REPEATS FOR THE REST OF THE COINS
//DIMES
if (dimes > 1 && (nickels != 0 || cents != 0)){
display2.setText(dimes + " dimes,");
}
else if (dimes > 1 && nickels == 0 && cents == 0 && quarters!=0){
display2.setText(" and " + dimes + " dimes.");
}
else if (dimes > 1 && quarters == 0){
display2.setText(dimes + " dimes.");
//Printing out "dimes." if the number of dimes is greater than 1 and it's the only coin displayed.
}
else if (dimes == 1 && (nickels != 0 || cents != 0)){
display2.setText(dimes + " dime,");
}
else if (dimes == 1 && nickels == 0 && cents == 0 && quarters!=0){
display2.setText(" and " + dimes + " dime.");
}
else if (dimes == 1 && quarters == 0){
display2.setText(dimes + " dime.");
//Printing out "dime." if there is 1 dime and it's the only coin displayed.
}
//NICKELS
if (nickels > 1 && cents !=0){
display2.setText(nickels + " nickels,");
}
else if (nickels > 1 && cents == 0){
display2.setText("and " + nickels + " nickels.");
}
else if (nickels == 1 && cents !=0){
display2.setText(nickels + " nickel,");
}
else if (nickels == 1 && (quarters !=0 || dimes!=0 ) && cents == 0){
display2.setText("and " + nickels + " nickel.");
}
else if (nickels == 1 && quarters == 0 && dimes == 0){
display2.setText(nickels + " nickel.");
//Printing "nickel." when it's the only coin to be displayed. There can only be 1 nickel, as 2 nickels make a dime.
}
//CENTS
if (cents > 1 && (quarters != 0 || dimes != 0 || nickels != 0)){
display2.setText(" and " + cents + " cents. ");
}
else if (cents == 1 && (quarters != 0 || dimes != 0 || nickels != 0)){
display2.setText(" and " + cents + " cent. ");
}
else if (cents >1 && quarters == 0 && dimes == 0 && nickels == 0){
display2.setText(cents + " cents.");
}
else if (cents == 1 && quarters == 0 && dimes == 0 && nickels == 0){
display2.setText(cents + " cent.");
}
}
private void displayActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
/**
* @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(CoinChange.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(CoinChange.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(CoinChange.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(CoinChange.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 CoinChange().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton calculateChange;
private javax.swing.JButton clear;
private javax.swing.JFormattedTextField display;
private javax.swing.JTextArea display2;
private javax.swing.JButton jButton0;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButton4;
private javax.swing.JButton jButton5;
private javax.swing.JButton jButton6;
private javax.swing.JButton jButton7;
private javax.swing.JButton jButton8;
private javax.swing.JButton jButton9;
private javax.swing.JScrollPane jScrollPane1;
// End of variables declaration
}
答案 0 :(得分：0)
复制文件还不够，您需要复制项目 。项目（nbproject目录所在的目录）包含运行它所需的信息。