¼Ò¼³°°ÀºÀÚ¹Ù3ºÎ  15Àå ¾ÖÇø´  15.3 ¾ÖÇø´¿¡ String±×¸®±â  

 

15.3 ¾ÖÇø´¿¡ String±×¸®±â

 

¾ÖÇø´ À§¿¡ ±×¸²À» ±×¸®´Â ÀÛ¾÷ºÎÅÍ ÇØ º¸µµ·Ï ÇϰڽÀ´Ï´Ù. ¾ÖÇø´Àº ±âº»ÀûÀ¸·Î ÆÐ³ÎÀ» »ó¼Ó ¹Þ±â¶§¹®¿¡ Frame°ú ºñ½ÁÇÑ ¼Ó¼ºÀ» °¡Áö°í ÀÖ½À´Ï´Ù. ´ç¿¬È÷ Panel¿¡¼­Ã³·³ paint¸Þ¼­µå¸¦ »ç¿ëÇÒ ¼ö ÀÖ°ÚÁÒ. À̰ÍÀº Áö±ØÈ÷ ´ç¿¬ÇÑ °ÍÀÔ´Ï´Ù. PanelÀÇ ¾ÆµéÀÎ ¾ÖÇø´ÀÌ ¾Æ¹öÁöÀÇ ¸Þ¼­µå¸¦ »ç¿ëÇϰڴٴ °ÍÀ̴ϱî¿ä. ´ÙÀ½Àº paint¸Þ¼­µå¸¦ ÀçÁ¤ÀÇÇØ¼­ ¾ÖÇø´À» Å×½ºÆ®ÇÏ´Â ¿¹Á¦ÀÔ´Ï´Ù.

 

HelloWorld.java(¾ÖÇø´¿¡ paint¸Þ¼­µå¸¦ ÀçÁ¤ÀÇÇÏ¿© ±Û±×¸®±â)

import java.applet.Applet;

import java.awt.Graphics;

public class HelloWorld extends Applet{  

   public void paint(Graphics g){     

       g.drawString("Hello World", 50, 20);  

   }

}

HelloWorld.html(HelloWorld.classÆÄÀÏÀ» ¾ÖÇø´¿¡ »ðÀÔÇϱâ)

<html><head><title>Applet test</title></head>

<body>

<applet code="HelloWorld.class" width=200 height=140></applet>

</body></html>

°á°úÈ­¸é(¾ÖÇø´ÀÇ ÁÂÇ¥¸¦ ±âÁØÀ¸·Î ÁÂÇ¥(50,20)¿¡ HelloWorld¸¦ ±×¸° °á°ú

 

¾ÖÇø´À» ±¸¼ºÇϱâÀ§Çؼ­´Â java.applet.Applet À» »ó¼ÓÇÏ¿© ¾ÖÇø´À» ±¸¼ºÇϰí paint¸Þ¼­µå¸¦ ÀçÁ¤ÀÇÇÑ ÈÄ Graphics g¸¦ ÀÌ¿ëÇÏ¿© ¾ÖÇø´ Ç¥¸é¿¡ ¡°Hello World¡±¶ó´Â ´Ü¾î¸¦ ±×¸®°í ÀÖ½À´Ï´Ù.

¾ÖÇø´À» ½ÇÇàÇϱâ À§Çؼ­ À¥ºê¶ó¿ìÁ®¸¦ ÅëÇØ¼­ °á°ú¸¦ º¸°í ÀÖ½À´Ï´Ù. ÇÏÁö¸¸ À¥ºê¶ó¿ìÁ®´Â µð¹ö±ë°ú ±×¸®°í ÇÁ·Î±×·¥ÀûÀÎ ÇÚµéÀÌ Èûµé´Ù´Â°Ô ÈìÀÌÁÒ. ±×·¡¼­ ÀÚ¹Ù¿¡¼­´Â ¾ÖÇø´À» ½ÇÇà½ÃÄÑÁÖ´Â ¼ÒÇü µð¹ö±ë À¥ºê¶ó¿ìÁ® ÅøÀ» Á¦°øÇϴµ¥ À̰ÍÀ» appletviewer¶ó°í ºÎ¸¨´Ï´Ù. ¸¸¾à ¿©·¯ºÐÀÌ appletviewer¸¦ ÅëÇØ¼­ ÇöÀçÀÇ ¾ÖÇø´À» ½ÇÇàÇÏ°í ½ÍÀ¸½Ã´Ù¸é ´ÙÀ½°ú °°ÀÌ ÇÏ½Ã¸é µË´Ï´Ù.

 

C:\JavaExample\15>javac HelloWorld.java

C:\JavaExample\15>appletviewer HelloWorld.html

 

Appletviewer´Â ÇÁ·Î±×·¥»óÀ¸·Î µð¹ö±ë°ú ÇÁ·Î±×·¥ÀûÀ¸·Î Àß ÇÚµéÇϱâ À§Çؼ­ »ç¿ëÇÏ´Â ´Ü¼øÇÑ ÅøÀÔ´Ï´Ù. °¡·É, System.out.printlnÀ¸·Î Ãâ·ÂÀ» ÇÑ´Ù°í °¡Á¤ÇÏÁÒ. ±×¸®°í ÇÁ·Î±×·¥»óÀÇ ¿¡·¯¸¦ Á¡°ËÇØ¾ß ÇÑ´Ù°í °¡Á¤ÇÏÁÒ. ±×·² °æ¿ì¿¡ appletviewer¸¦ »ç¿ëÇÑ´Ù¸é ÈξÀ ¼ö¿ùÇÏ°Ô ÀÛ¾÷À» ÇÒ ¼ö ÀÖ½À´Ï´Ù. System.out.printlnÀº À¥ºê¶ó¿ìÁ®¿¡¼­´Â Ç¥½ÃµÇÁö ¾ÊÀ¸´Ï±î¿ä. ´ÙÀ½Àº À§ÀÇ ¿¹Á¦¸¦ ¾à°£ º¯ÇüÇÏ¿© appletviewer¸¦ ÅëÇØ¼­ º» ¿¹ÀÔ´Ï´Ù.

 

HelloWorld.java(ÄܼÖâ¿¡ printÇϱâ)

import java.applet.Applet;

import java.awt.Graphics;

public class HelloWorld extends Applet{  

   public void paint(Graphics g){     

       g.drawString("Hello World", 50, 20);  

       System.out.println("Hello World");

   }

}

À§ÀÇ ÇÁ·Î±×·¥À» appletviewer¿¡¼­ ½ÇÇàÇÑ´Ù¸é Dos Consoleâ¿¡ ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾òÀ» ¼ö ÀÖÀ» °ÍÀÔ´Ï´Ù.

C:\JavaExample\15>javac HelloWorld.java

C:\JavaExample\15>appletviewer HelloWorld.html

Hello World

 

¾ÖÇø´¿¡¼­ ¾î¶°ÇÑ ¹ö±×°¡ »ý¼ºµÇ°Å³ª ¾Æ´Ï¸é System.out.printlnÀ» ÅëÇØ¼­ Ãâ·ÂÀ» ÇÑ´Ù¸é Dos ÄܼÖâ¿¡ ÇÁ¸°Æ® µÇ¾îÁú °Ì´Ï´Ù. ¾ÖÇø´ÀÇ paint¸Þ¼­µå³»¿¡ System.out.printlnÀ¸·Î ¾Æ¹« ±ÛÀ̳ª Ãâ·ÂÇØ º¸½Ã±â ¹Ù¶ø´Ï´Ù. ÀÌ·¯ÇÑ ¹æ¹ýµéÀ» ÅëÇØ¼­ ¾ÖÇø´ÀÇ ÇÁ·Î±×·¥À» µð¹ö±ëÇϸç ÇÁ·Î±×·¥ÇÒ ¼ö ÀÖ½À´Ï´Ù. ÀÚ! ±×·¸´Ù¸é À¥ºê¶ó¿ìÁ®³»¿¡´Â DosÀÇ Äְܼú °°Àº °ÍÀÌ ¾øÀ»±î¿ä? ÀÌ·¯ÇÑ Àǹ®µé°ú ¾ÖÇø´ ÇÁ·Î±×·¥À» ÇÒ ¶§ À¥ºê¶ó¿ìÁ®¿¡¼­ ÁÖÀÇÇØ¾ßÇÏ´Â »çÇ׵鿡 ´ëÇØ¼­ ¾Ë¾Æº¸µµ·Ï ÇÏÁÒ.



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