¼Ò¼³°°ÀºÀÚ¹Ù3ºÎ  13Àå AWT  13.4 Frame¿¡ String±×¸®±â  

 

13.3 Frame¿¡ String±×¸®±â

 

 Frame¿¡ StringÀ» ±×¸®±â À§Çؼ­´Â paint¸Þ¼­µå¸¦ ÀçÁ¤ÀÇÇÏ´Â ¹æ¹ýÀ» »ç¿ëÇÕ´Ï´Ù. paint¸Þ¼­µå´Â ±âº»ÀûÀ¸·Î È­¸é¿¡ FrameÀÌ ³ªÅ¸³ª´Â ¼ø°£¿¡ ÀÚµ¿À¸·Î È£ÃâµÇ´Â ¸Þ¼­µåÀÔ´Ï´Ù. ÀÌ ¶§ ¸Å°³º¯¼ö·Î ³Ñ¾î¿À´Â Graphics g´Â ÄÄÆ÷³ÍÆ®¿¡ ±×·¡ÇÈÀÛ¾÷À» ÇÒ ¼ö ÀÖ´Â ±â´ÉÀ» Á¦°øÇÕ´Ï´Ù. ´ÙÀ½Àº FrameÀÇ È­¸é¿¡ ¡°Hello World¡±¹®ÀÚ¸¦ ±×¸®´Â ¿¹Á¦ÀÔ´Ï´Ù.

 

GraphicsFrame.java(paint¸Þ¼­µå¸¦ ÀçÁ¤ÀÇÇÑ ¿¹)

import java.awt.*;

public class GraphicsFrame extends Frame{

   public GraphicsFrame(){

       this.setTitle("Frame Hello World");

   }

   public void paint(Graphics g){

       g.drawString("Hello World!", 50,50);

   }

}

GraphicsFrameTest.java(Hello World FrameÅ×¼­Æ®)

import java.awt.Frame;

import java.awt.Color;

public class GraphicsFrameTest {

   public static void main (String args[]){

       GraphicsFrame f = new GraphicsFrame();

       f.setSize(200,100);

       f.show();

   }

}

C:\JavaExample\13>javac GraphicsFrame.java

C:\JavaExample\13>javac GraphicsFrameTest.java

C:\JavaExample\13>java GraphicsFrameTest

 

 Hello World¶ó´Â ½ºÆ®¸µÀ» ÇÁ·¹ÀÓ¿¡ ±×¸®±â À§Çؼ­ paint¸Þ¼­µå¸¦ ÀçÁ¤ÀÇÇϰí ÀÖ½À´Ï´Ù.

 

n        public void paint(Graphics g){

n             g.drawString("Hello World!", 50,50);

n        }

 

paint¸Þ¼­µå¸¦ ÀçÁ¤ÀÇ ÇÒ ¶§ ¸Å°³º¯¼ö Graphics g´Â ±×·¡ÇÈ ÀÛ¾÷À» Çϱâ À§ÇÑ ¸¹Àº ´É·ÂÀ» °¡Áö°í ÀÖ½À´Ï´Ù. Àú´Â °³ÀÎÀûÀ¸·Î GraphicsŬ·¡½º¸¦ º×À¸·Î ºñÀ¯Çϴµ¥¿ä. À̰ÍÀº GraphicsŬ·¡½ºÀÇ ´ëºÎºÐÀÇ ¸Þ¼­µå°¡ draw·Î ½ÃÀÛÇϱ⠶§¹®ÀÔ´Ï´Ù. GraphicsFrameÀº FrameÀ» »ó¼ÓÇ߱⠶§¹®¿¡ GraphicsFrameŬ·¡½ºÀÔÀå¿¡¼­´Â ¾Æ¹öÁöÀÇ ¸ðµç °ÍÀ» ÀÚ½ÅÀÇ °Íó·³ »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù. ±×·¡¼­ GraphicsFrameÀÇ »ý¼ºÀÚ ºÎºÐ¿¡ public void paint(Graphics g) ¸Þ¼­µå¸¦ ÀçÁ¤ÀÇ ÇÒ ¼ö ÀÖÀ¸¸ç, setTitle¸Þ¼­µå¸¦ »ç¿ëÇÒ ¼ö ÀÖ´Â °ÍÀÔ´Ï´Ù.

 

Ȥ½Ã, ÀÌ·± Áú¹®À» ÇÏ´Â ºÐµµ °è½Ç °Ì´Ï´Ù. ±×·± ¸Þ¼­µå¸¦ ¾î¶»°Ô ´Ù ±¸ºÐ ÇÒ ¼ö ÀÖÁö¿ä? Á¤´äÀº Java Document API¿¡ ³ª¿Í ÀÖ½À´Ï´Ù. À̰ÍÀ» ÂüÁ¶ÇÏ´Â ¹æ¹ý ¹Û¿¡´Â Á¤´äÀÌ ¾ø½À´Ï´Ù. »ç¿ëÇϰíÀÚ ÇÏ´Â ClassÀÇ ´É·ÂÀÌ ¸ðµÎ ±â·ÏµÇ¾î ÀÖ´Â Java Document API¸¦ º¸½Ã¸é public ¸Þ¼­µå¿Í public ¸â¹öÇÊµå ±×¸®°í staticÀÎÁö ¾Æ´ÑÁö±îÁö ¸ðµÎ ³ª¿Í ÀÖ½À´Ï´Ù. ´ç¿¬È÷ java.awt.FrameŬ·¡½º¸¦ API¹®¼­¿¡¼­ ã¾Æº¸¸é setTitle, paint¸Þ¼­µåµµ ãÀ» ¼ö ÀÖÀ» °ÍÀÔ´Ï´Ù. Java SDK°¡ ÃÑÀ̶ó¸é Java Document API´Â Ä®Á¤µµ µÇ°ÚÁÒ. ¹Ýµå½Ã ¹®¼­¸¦ ÂüÁ¶ÇϽñ⠹ٶø´Ï´Ù.

 

ÀÚ! ÀÌÁ¦ ÀÌ¿Õ Graphics¸¦ ´Ù·ç¾úÀ¸´Ï º¸´Ù º¹ÀâÇÑ ±×¸²À» ±×·Á º¸µµ·Ï ÇϰڽÀ´Ï´Ù. Graphics gÀÇ ¸î°¡Áö ¸Þ¼­µå¸¦ ´õ È£Ãâ ÇØ º¸µµ·Ï ÇϰڽÀ´Ï´Ù.

 

GraphicsFrame2.java(±âŸ ±×·¡ÇÈÀÇ ±â´ÉÀ» À§ÇÑ Å×½ºÆ®)

import java.awt.*;

public class GraphicsFrame2 extends Frame{

   public GraphicsFrame2(){

       this.setTitle("Grapics Test");

   }

   public void paint(Graphics g){

       g.drawString("Grapics Test!", 50,50);

       g.setColor(Color.blue);

       g.drawOval(20,20,30,30);

       g.setColor(Color.red);

       g.drawLine(10,10, 100,100);

       g.setColor(Color.black);

       g.drawRect(50,50,50,50);

       g.setColor(Color.orange);

       g.fillRect(100,100,40,50);

   }

}

GraphicsFrame2Test.java(±×·¡ÇȽºÃ¢ ¶ç¿ì±â ¿¹Á¦)

import java.awt.Frame;

import java.awt.Color;

public class GraphicsFrame2Test {

   public static void main (String args[]){

       GraphicsFrame2 f = new GraphicsFrame2();

       f.setSize(200,200);

       f.show();

   }

}

C:\JavaExample\13>javac GraphicsFrame2.java

C:\JavaExample\13>javac GraphicsFrame2Test.java

C:\JavaExample\13>java GraphicsFrame2Test

 

Hello World ¿¹Á¦¿Í º°¹Ý ´Ù¸¦ °ÍÀÌ ¾ø½À´Ï´Ù. ¿©±â¼­ ´Ü¼øÈ÷ paint¸Þ¼­µåÀÇ ¸Å°³º¯¼öÀÎ Graphics g¸¦ ÀÌ¿ëÇÏ´Â ºÎºÐÀÇ Äڵ常 ¸î ÁÙ Ãß°¡ µÇ¾ú½À´Ï´Ù.

 

n        g.drawString("Grapics Test!", 50,50);à ÁÂÇ¥ 50,50¿¡ ½ºÆ®¸µ±×¸®±â

n        g.setColor(Color.blue);àÆÄ¶õ»öÀ¸·Î g¼ÂÆÃ

n        g.drawOval(20,20,30,30);àŸ¿ø±×¸®±â

n        g.setColor(Color.red);໡°£»öÀ¸·Î g¼ÂÆÃ

n        g.drawLine(10,10, 100,100);à¶óÀα׸®±â

n        g.setColor(Color.black);à°ËÀº»öÀ¸·Î g¼ÂÆÃ

n        g.drawRect(50,50,50,50);à»ç°¢Çü ±×¸®±â

n        g.setColor(Color.orange);à¿À·£Áö»öÀ¸·Î g¼ÂÆÃ

n        g.fillRect(100,100,40,50); àä¿öÁø »ç°¢Çü ±×¸®±â

 

gÀÇ ´Ù¸¥ ¸Þ¼­µå´Â API¹®¼­¿¡¼­ ÂüÁ¶ÇÏ¿© ¿©·¯°¡Áö ±×·¡ÇÈÀÛ¾÷µéÀ» Å×½ºÆ®ÇØ º¸½Ã±â ¹Ù¶ø´Ï´Ù.



jabookÀúÀÚ¸íÇÔ
Á¦¸ñ:¼Ò¼³°°ÀºÀÚ¹Ù3ºÎ
ÀúÀÚ:ÃÖ¿µ°ü