Limit Values in Number JSpinner Component with Java

To limit the values in a number JSpinner component, use the SpinnerNumberModel that allows to set the min, max, step size and even the initial value −

value − current value of the model
min − first number in the sequence
max − last number in the sequence
stepSize − difference between elements of the sequence

Let us set the above values −

int min = 0;
int max = 10;
int step = 1;
int i = 1;
SpinnerModel value = new SpinnerNumberModel(i, min, max, step);

Now, we will set these values to our JSpinner −

JSpinner spinner = new JSpinner(value);

The following is an example to limit the values in a number JSpinner component −

Example

package my;
import java.awt.GridBagLayout;
import javax.swing.*;
public class SwingDemo {
   public static void main(String[] args) {
      JFrame frame = new JFrame("Spinner Demo");
      JPanel panel = new JPanel();
      JLabel label = new JLabel("Rank − ");
      panel.setLayout(new GridBagLayout());
      int min = 0;
      int max = 10;
      int step = 1;
      int i = 1;
      SpinnerModel value = new SpinnerNumberModel(i, min, max, step);
      JSpinner spinner = new JSpinner(value);
      spinner.setBounds(50, 80, 70, 100);
      panel.add(label);
      panel.add(spinner);
      frame.add(panel);
      frame.setSize(550,300);
      frame.setVisible(true);
   }
}

This will produce the following output −