[英]Java Name Swing Applet
I'm trying to make a java swing applet using NetBeans that will take a name like Joe Smith
and change it to Smith, Joe
. 我正在尝试使用NetBeans创建一个Java swing applet,该小程序将采用Joe Smith
类的名称,并将其更改为Smith, Joe
。 However, when I run my applet, it doesn't change the name. 但是,当我运行小程序时,它不会更改名称。 Can anyone help me figure this out? 谁能帮我解决这个问题?
private void submitButtonActionPerformed(java.awt.event.ActionEvent evt) {
String name = null;
String strName = nameTextField.getText();
if (name == "") {
return;
} else {
outputLabel.setText(convertName(name));
}
}
public static boolean hasComma(String name) {
return name.indexOf(',') >= 0;
}
public static String convertName(String name) {
if (hasComma(name)) {
return name;
} else {
int index = name.indexOf(' ');
String first = name.substring(0, index);
String last = name.substring(index + 1);
String newName = last + ", " + first;
return newName;
}
}
// Variables declaration - do not modify
private javax.swing.JLabel nameLabel;
private javax.swing.JTextField nameTextField;
private javax.swing.JLabel outputLabel;
private javax.swing.JButton submitButton;
// End of variables declaration
String strName = nameTextField.getText(); 字符串strName = nameTextField.getText();
should probably be 应该是
String name = nameTextField.getText(); 字符串名称= nameTextField.getText();
in submitButtonActionPerformed(). 在SubmitButtonActionPerformed()中。
The method to compare strings is equals
. 比较字符串的方法equals
。 Change code 变更密码
name = nameTextField.getText();
if ("".equals(name) {
return;
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