Java Swing Tutorial - Java InputMap() Constructor

Syntax

InputMap() constructor from InputMap has the following syntax.

public InputMap()

Example

In the following code shows how to use InputMap.InputMap() constructor.

//from  w w w.  j av  a 2s.  c om
import javax.swing.InputMap;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.KeyStroke;

public class Main {
  public static void main(String[] argv) throws Exception {
    InputMap inputMap = new InputMap();

    inputMap.put(KeyStroke.getKeyStroke("F2"), "actionName");

    JButton component = new JButton("button");
    
    inputMap.setParent(component.getInputMap(JComponent.WHEN_FOCUSED));
    component.setInputMap(JComponent.WHEN_FOCUSED, inputMap);

    System.out.println(inputMap.size());
    
  }
}