Disable Keyboard Editing in JSpinner

A simple example on JSpinner. In the example, the editing mode is disabled using setEditable() method. So it will not be possible to insert numbers with the help of keyboard :


import javax.swing.*;
import java.awt.*;

public class Disablekeyboard{
public static void main(String[] args){
JFrame frm = new JFrame("Disable Keyboard Editing Example");
JSpinner spinner = new JSpinner();
JFormattedTextField tf = ((JSpinner.DefaultEditor)spinner.getEditor())
.getTextField();
tf.setEditable(false);
spinner.setValue(new Integer(100));
JPanel panel = new JPanel();
panel.add(spinner);
frm.add(panel, BorderLayout.NORTH);
frm.setSize(350, 350);
frm.setVisible(true);
frm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}

Java sort() Method Example

If you want to sort string characters then this example is the best for you. The sort() method sort words in ascending order. Look a simple example of sort() method given below :

import java.util.*;
import java.io.*;
import java.lang.String;

public class sortstr{
public static void main(String args[]){
String str = "Java String Example";
char[] content = str.toCharArray();
java.util.Arrays.sort(content);
String sorted = new String(content);
System.out.println(content);
}
}

Result : EJSaaegilmnprtvx