PPT Slide

// set up Canvas to draw on

myCanvas = new Canvas( );

// place components on screen

setLayout( new BorderLayout( ) );

add( printHello, "North" );

add( other, "South" );

add( myCanvas, "Center" );

} // init

public void actionPerformed ( ActionEvent evt ) {

// print a simple message to see what button was pressed

// getSource( ) returns a reference to the object that

// caused the event to happen

if ( evt.getSource( ) = = other )

System.out.println( “other pressed.” );

else

System.out.println( “Print 'Hello World' pressed.” );

repaint( );

} // actionPerformed