001.import java.applet.*;
002.import java.awt.event.*;
003.import java.awt.*;
004.import javax.swing.*;
005.
006.public class testkey extends JApplet implements KeyListener,ActionListener {
007. private ImageIcon image1, image2, image3;
008. private int width, height;
009. private JPanel guiPanel, graphicsPanel;
010. private JButton startBtn, stopBtn;
011. private int xMin, xMax, yMin, yMax,xMin1, xMax1, yMin1, yMax1;
012. private int x, y,x1,y1 ,size,size1, xSpeed, ySpeed, xSpeed1, ySpeed1,p=0;
013. Color fgcolor;
014. private char typeShape='C';
015.
016. Timer swTimer;
017.
018. public void init () {
019.
020. Container c = getContentPane();
021. c.setLayout(new FlowLayout());
022. startBtn = new JButton("Play");
023. startBtn.addActionListener(this);
024. startBtn.addKeyListener(this);
025. c.add(startBtn);
026. stopBtn = new JButton("Stop");
027. stopBtn.addActionListener(this);
028. stopBtn.addKeyListener(this);
029. c.add(stopBtn);
030. width = 480; height = 320;
031. xMin = 50; xMax = 350;
032. yMin = 50; yMax = 90;
033. xSpeed = 1; ySpeed = 1;
034.
035. x = 50; y = 50; size = 40;
036. fgcolor=Color.BLUE;
037.image1 = new ImageIcon( getClass().getResource("/images/htb-1.png") );
038. swTimer = new Timer(10, this);
039. addKeyListener( this );
040. }
041.public void paint(Graphics g) {
042. super.paint(g);
043. g.drawLine(50, 70, 350, 70);
044. g.drawLine(350, 70, 350, 200);
045. g.drawString("xspeed : "+xSpeed,80,80);
046. g.drawString("x : "+x,180,180);
047. g.drawString("y : "+y,190,190);
048. if(typeShape=='R'){
049. g.setColor(fgcolor);
050. g.fillRect(x,y,size,size);
051. g.setColor(Color.BLACK);
052. g.drawRect(x,y,size,size);
053. }
054.
055.
056.
057.
058.
059. else{
060. g.setColor(fgcolor);
061. g.fillOval(x,y,size,size);
062. g.setColor(Color.BLACK);
063. g.drawOval(x,y,size,size);
064. }
065.
066. }
067.
068. public void keyPressed(KeyEvent event) {
069. if ( event.getKeyChar() == 'p')
070.{
071. swTimer.start();
072.}
073. else if ( event.getKeyChar() == 's')
074.{
075. swTimer.stop();
076.}
077.if(event.getKeyChar()=='c') typeShape='C';
078. if(event.getKeyChar()=='r') typeShape='R';
079. if(event.getKeyChar()=='l') typeShape='L';
080.
081. }
082.
083.
084. public void actionPerformed(ActionEvent e) {
085. if (e.getSource() == startBtn) { swTimer.start(); }
086. else if (e.getSource() == stopBtn) { swTimer.stop(); }
087. else {
088. move();
089. repaint();
090. }
091. }
092. public void move() {
093. x = x + xSpeed;
094. y = y + ySpeed;
095.
096.
097.
098. if (x < xMin) {
099. x = xMin;
100. xSpeed = -xSpeed;
101. }
102.
103.
104. else if (x+size > xMax) {
105. x = xMax - size;
106. xSpeed = -xSpeed;
107. }
108.
109. if (y < yMin) {
110. y = yMin;
111. ySpeed = -ySpeed;
112. }
113. else if (y+size > yMax) {
114. y = yMax - size;
115. ySpeed = -ySpeed;
116. }
117.
118. }
119.
120.
121. public void keyReleased(KeyEvent event){
122. repaint();
123. }
124.
125. public void keyTyped(KeyEvent event){
126. Graphics g = getGraphics();
127. g.drawString("keyTyped : "+event.getKeyChar(),50,50);
128. }
129.}
