в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

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2010-05-31T14:23:35Z

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== new Point(int x, int y) ==



<source lang="java">

/*
* Output:
cPoint is located at: java.awt.Point[x=50,y=25]
aPoint is located at: java.awt.Point[x=0,y=0]
aPoint is now at: java.awt.Point[x=110,y=70]
aPoint and bPoint are at the same location.

* */
import java.awt.Point;
public class MainClass {
public static void main(String[] args) {
Point aPoint = new Point();
Point bPoint = new Point(50, 25);
Point cPoint = new Point(bPoint);

System.out.println("cPoint is located at: " + cPoint);

System.out.println("aPoint is located at: " + aPoint);
aPoint.move(100, 50);
bPoint.x = 110;
bPoint.y = 70;
aPoint.translate(10, 20);
System.out.println("aPoint is now at: " + aPoint);
if (aPoint.equals(bPoint))
System.out.println("aPoint and bPoint are at the same location.");
}
}

</source>



== new Point(Point p) ==



<source lang="java">

/*
* Output:
cPoint is located at: java.awt.Point[x=50,y=25]
aPoint is located at: java.awt.Point[x=0,y=0]
aPoint is now at: java.awt.Point[x=110,y=70]
aPoint and bPoint are at the same location.

* */
import java.awt.Point;
public class MainClass {
public static void main(String[] args) {
Point aPoint = new Point();
Point bPoint = new Point(50, 25);
Point cPoint = new Point(bPoint);

System.out.println("cPoint is located at: " + cPoint);

System.out.println("aPoint is located at: " + aPoint);
aPoint.move(100, 50);
bPoint.x = 110;
bPoint.y = 70;
aPoint.translate(10, 20);
System.out.println("aPoint is now at: " + aPoint);
if (aPoint.equals(bPoint))
System.out.println("aPoint and bPoint are at the same location.");
}
}

</source>



== Point: equals(Object p) ==



<source lang="java">

/*
* Output:
cPoint is located at: java.awt.Point[x=50,y=25]
aPoint is located at: java.awt.Point[x=0,y=0]
aPoint is now at: java.awt.Point[x=110,y=70]
aPoint and bPoint are at the same location.

* */
import java.awt.Point;
public class MainClass {
public static void main(String[] args) {
Point aPoint = new Point();
Point bPoint = new Point(50, 25);
Point cPoint = new Point(bPoint);

System.out.println("cPoint is located at: " + cPoint);

System.out.println("aPoint is located at: " + aPoint);
aPoint.move(100, 50);
bPoint.x = 110;
bPoint.y = 70;
aPoint.translate(10, 20);
System.out.println("aPoint is now at: " + aPoint);
if (aPoint.equals(bPoint))
System.out.println("aPoint and bPoint are at the same location.");
}
}

</source>



== Point: move(int x, int y) ==



<source lang="java">

/*
* Output:
cPoint is located at: java.awt.Point[x=50,y=25]
aPoint is located at: java.awt.Point[x=0,y=0]
aPoint is now at: java.awt.Point[x=110,y=70]
aPoint and bPoint are at the same location.

* */
import java.awt.Point;
public class MainClass {
public static void main(String[] args) {
Point aPoint = new Point();
Point bPoint = new Point(50, 25);
Point cPoint = new Point(bPoint);

System.out.println("cPoint is located at: " + cPoint);

System.out.println("aPoint is located at: " + aPoint);
aPoint.move(100, 50);
bPoint.x = 110;
bPoint.y = 70;
aPoint.translate(10, 20);
System.out.println("aPoint is now at: " + aPoint);
if (aPoint.equals(bPoint))
System.out.println("aPoint and bPoint are at the same location.");
}
}

</source>



== Point: translate(int dx, int dy) ==



<source lang="java">

/*
* Output:
cPoint is located at: java.awt.Point[x=50,y=25]
aPoint is located at: java.awt.Point[x=0,y=0]
aPoint is now at: java.awt.Point[x=110,y=70]
aPoint and bPoint are at the same location.

* */
import java.awt.Point;
public class MainClass {
public static void main(String[] args) {
Point aPoint = new Point();
Point bPoint = new Point(50, 25);
Point cPoint = new Point(bPoint);

System.out.println("cPoint is located at: " + cPoint);

System.out.println("aPoint is located at: " + aPoint);
aPoint.move(100, 50);
bPoint.x = 110;
bPoint.y = 70;
aPoint.translate(10, 20);
System.out.println("aPoint is now at: " + aPoint);
if (aPoint.equals(bPoint))
System.out.println("aPoint and bPoint are at the same location.");
}
}

</source>



== Point.x ==



<source lang="java">

import java.awt.Container;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Main extends JPanel implements KeyListener {
private Point startPoint = new Point(0, 0);
private Point endPoint = new Point(0, 0);
public Main() {
addKeyListener(this);
}
public void keyPressed(KeyEvent evt) {
int keyCode = evt.getKeyCode();
int d;
if (evt.isShiftDown())
d = 5;
else
d = 1;
if (keyCode == KeyEvent.VK_LEFT)
add(-d, 0);
else if (keyCode == KeyEvent.VK_RIGHT)
add(d, 0);
else if (keyCode == KeyEvent.VK_UP)
add(0, -d);
else if (keyCode == KeyEvent.VK_DOWN)
add(0, d);
}
public void keyReleased(KeyEvent evt) {
}
public void keyTyped(KeyEvent evt) {
}
public boolean isFocusTraversable() {
return true;
}
public void add(int dx, int dy) {
endPoint.x += dx;
endPoint.y += dy;
Graphics g = getGraphics();
g.drawLine(startPoint.x, startPoint.y, endPoint.x, endPoint.y);
g.dispose();
startPoint.x = endPoint.x;
startPoint.y = endPoint.y;
}
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setTitle("Sketch");
frame.setSize(300, 200);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container contentPane = frame.getContentPane();
contentPane.add(new Main());
frame.setVisible(true);
}
}

</source>



== Point.y ==



<source lang="java">

import java.awt.Container;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Main extends JPanel implements KeyListener {
private Point startPoint = new Point(0, 0);
private Point endPoint = new Point(0, 0);
public Main() {
addKeyListener(this);
}
public void keyPressed(KeyEvent evt) {
int keyCode = evt.getKeyCode();
int d;
if (evt.isShiftDown())
d = 5;
else
d = 1;
if (keyCode == KeyEvent.VK_LEFT)
add(-d, 0);
else if (keyCode == KeyEvent.VK_RIGHT)
add(d, 0);
else if (keyCode == KeyEvent.VK_UP)
add(0, -d);
else if (keyCode == KeyEvent.VK_DOWN)
add(0, d);
}
public void keyReleased(KeyEvent evt) {
}
public void keyTyped(KeyEvent evt) {
}
public boolean isFocusTraversable() {
return true;
}
public void add(int dx, int dy) {
endPoint.x += dx;
endPoint.y += dy;
Graphics g = getGraphics();
g.drawLine(startPoint.x, startPoint.y, endPoint.x, endPoint.y);
g.dispose();
startPoint.x = endPoint.x;
startPoint.y = endPoint.y;
}
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setTitle("Sketch");
frame.setSize(300, 200);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container contentPane = frame.getContentPane();
contentPane.add(new Main());
frame.setVisible(true);
}
}

</source>

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в 17:43, 31 мая 2010

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