Solved

Rewrite the Following Code to Use a Lambda Expression for the Button

Question 26

Essay

Rewrite the following code to use a Lambda expression for the button action listener.
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JFrame;
import java.awt.Color;
import java.awt.Container;
import java.awt.FlowLayout;
public class ButtonDemo3 extends JFrame
{
public ButtonDemo3 )
{
setSize250,100);
setDefaultCloseOperationJFrame.EXIT_ON_CLOSE);
setTitle"Button Demo");
Container contentPane = getContentPane );
contentPane.setBackgroundColor.BLUE);
contentPane.setLayoutnew FlowLayout ));
JButton goButton = new JButton"Green");
goButton.addActionListener
{ e } - > contentPane.setBackgroundColor.GREEN));
contentPane.addgoButton);
}
public static void mainString[] args)
{
ButtonDemo3 buttonGui = new ButtonDemo3 );
buttonGui.setVisibletrue);
}
}

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import java.util.ArrayList;
import javax...

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