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- お絵かき遊び
- (1) 四角を3つ (ex07a.java)
- (2) 北斗七星 (ex07b.java)
- (3) 四角のしましま (ex07c.java)
- (4) いろいろな文字 (ex07d.java)
お絵かき遊び 
[1]
- (by K[2], 2010.07.11)
- ここまでで紹介した命令のサンプルです。
(1) 四角を3つ (ex07a.java) [3]
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
/* <applet code="ex07a.class" width="400" height="400"></applet> */
public class ex07a extends blike {
public void run()
{
grp.setColor(new Color(0xc0c0c0)); /* 背景色：やや白い灰色 */
grp.fillRect(0, 0, dim.width, dim.height);
grp.setColor(new Color(0xff0000)); /* 赤 */
grp.fillRect( 50, 50, 150, 100);
grp.setColor(new Color(0x00ff00)); /* 緑 */
grp.fillRect(100, 80, 150, 100);
grp.setColor(new Color(0x0000ff)); /* 青 */
grp.fillRect(150, 110, 150, 100);
repaint();
}
}(2) 北斗七星 (ex07b.java) [4]
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
/* <applet code="ex07b.class" width="400" height="400"></applet> */
public class ex07b extends blike {
public void run()
{
grp.setColor(new Color(0x000080)); /* 濃い青 */
grp.fillRect(0, 0, dim.width, dim.height);
grp.setColor(new Color(0xffff00)); /* 黄色 */
grp.drawString("*", 60, 120);
grp.drawString("*", 90, 100);
grp.drawString("*", 110, 102);
grp.drawString("*", 135, 102);
grp.drawString("*", 155, 120);
grp.drawString("*", 185, 105);
grp.drawString("*", 180, 80);
grp.setColor(new Color(0x00ff00)); /* 緑 */
grp.drawString("北斗七星", 120, 150);
repaint();
}
}(3) 四角のしましま (ex07c.java) [5]
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
/* <applet code="ex07c.class" width="400" height="400"></applet> */
public class ex07c extends blike {
public void run()
{
grp.setColor(new Color(0xffffff));
grp.fillRect(0, 0, dim.width, dim.height);
grp.setColor(new Color(0x000000));
grp.fillRect( 20, 20, 360, 360);
grp.setColor(new Color(0xffffff));
grp.fillRect( 40, 40, 320, 320);
grp.setColor(new Color(0x000000));
grp.fillRect( 60, 60, 280, 280);
grp.setColor(new Color(0xffffff));
grp.fillRect( 80, 80, 240, 240);
grp.setColor(new Color(0x000000));
grp.fillRect(100, 100, 200, 200);
grp.setColor(new Color(0xffffff));
grp.fillRect(120, 120, 160, 160);
grp.setColor(new Color(0xff0000));
grp.drawString("四角のしましま", 30, 397);
repaint();
}
}(4) いろいろな文字 (ex07d.java) [6]
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
/* <applet code="ex07d.class" width="400" height="400"></applet> */
public class ex07d extends blike {
public void run()
{
grp.setColor(new Color(0xffffff));
grp.fillRect(0, 0, dim.width, dim.height);
grp.setColor(new Color(0x000000));
grp.setFont(new Font("Dialog", Font.PLAIN, 12)); /* 普通の大きさ */
grp.drawString("こんにちは ABC", 60, 110);
grp.setFont(new Font("Dialog", Font.PLAIN, 24)); /* 2倍の大きさ */
grp.drawString("こんにちは ABC", 60, 140);
grp.setFont(new Font("Dialog", Font.ITALIC, 24)); /* 2倍で斜体 */
grp.drawString("こんにちは ABC", 60, 170);
grp.setFont(new Font("Dialog", Font.BOLD, 24)); /* 2倍で太字 */
grp.drawString("こんにちは ABC", 60, 200);
repaint();
}
}Last-modified: 2010-07-13 (火) 00:00:00 (JST) (713d) by lina
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