[英]How to add a JPanel from a diffent class to another JPanel on mouse click
我一直在嘗試在單擊JLabel時使用文本字段(這里稱為“ readerSetTxtJTextField”)填充到一個名為“ Home.java”的類中的一個JPanel(這里稱為“ BulletinsJPanel”)。 ReaderPanel在另一個名為“ Reader.java”的類中,該類應讀取文本文件的內容並用一行文本填充JTextField對象。
我正在使用的netbeans不會顯示任何代碼錯誤突出顯示。
我非常感謝幫助顯示文本字段“ readerSetTxtJTextField”的幫助。 非常感謝。
這是我的代碼:
// The class Home
package Panels;
public class Home extends javax.swing.JPanel {
// Here's a method in the class 'Home.java' which should populate 'BulletinsJPanel' with the contents
private void MouseClickedList(java.awt.event.MouseEvent evt) {
BulletinsJPanel.add(Reader.readerMouseClickedList());
BulletinsJPanel.revalidate();
BulletinsJPanel.repaint();
}
}
// Now the class Reader below
package Database;
public class Reader {
public static JTextField readerSetTxtJTextField;
public static JTextField readerMouseClickedList() {
try {
// Our code
String fileURL = "/D:/TestFile.txt/";
List<String[]> matches = new ArrayList<String[]>();
String finalText;
FileInputStream fileInputStream = new FileInputStream(fileURL);
DataInputStream dataInputStream = new DataInputStream(fileInputStream);
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(dataInputStream));
String stringLine;
while((stringLine = bufferedReader.readLine()) != null) {
String splittable = "[\\s]", splitLenth = "{955}";
if(stringLine.startsWith("2013001")) {
String[] splits = stringLine.split(splittable + splitLenth );
matches.add(splits);
}
}
dataInputStream.close();
for(String[] items : matches) {
int itemsLength = items.length;
int i;
for(i = 0; i <= itemsLength; i++) {
finalText = (items[i]);
readerSetTxtJTextField = new JTextField();
readerSetTxtJTextField.setText(finalText);
}
}
} catch (Exception e) {
// Catch exception if any
System.err.println("Error: " + e.getMessage());
}
return readerSetTxtJTextField;
}
}
為了快速解決您的錯誤,請更改:
for(i = 0; i <= itemsLength; i++)
至
for(i = 0; i < itemsLength; i++)
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