JAVA GUI???????

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JAVA GUI???????
?1?

• JAVA???
• ?????

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?1? ??

• ? JAVA????????
• ? html????????
• ? ????????
• ? JAVA???????????
• ? ?????

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?JAVA??????????
?????????????????????? ???H???????????? ??????Exam
ple1.java???? ???????????????????? ??????????????
?????????
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import java.awt. import javax.swing. public
class Example1 extends JApplet public void
init() public void paint(Graphics g)

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?html???????
???HTML???????????? ????????ex1.html??????
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lthtmlgt ltheadgt lttitlegt????JAVAlt/titlegt lt/headgt ltb
ody bgcolor"00FFFF"gt ltpgtltapplet
codeExample1.class" width"500" height"500"gtlt/a
ppletgtlt/pgt lt/bodygt lt/htmlgt
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lthtmlgt ltheadgt lttitlegt????JAVAlt/titlegt lt/headgt ltb
ody bgcolor"00FFFF"gt ltpgtltapplet
codeExample1.class" width"500" height"500"gtlt/a
ppletgtlt/pgt lt/bodygt lt/htmlgt
JAVA???? Example1? ?500 ??500???
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?JAVA?????????
????????????????? ???MS-DOS???????????
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????? C?windowsgt ?????????????? ?????????H??????
????????? ????????
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C?windoswgt ????cd h? ???????? ????? H?gt ??????
??
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C?windoswgt ????cd h? ???????? ????? H?gt ??????
??
cd?? change directory??? ??????????????
MS-DOS??UNIX??????
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???????
JAVA??????? Javac ????? ??????Example1.java???
javac Example1.java ???????
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?????????????
??????????????????? ?????????????????????? ??????
??????
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html????????
??????ex1.html????????? Internet
Explorer?????500??500???? ??????? ???????????
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JAVA?????????
???????Example1.java????????????
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import java.awt. import javax.swing. public
class Example1 extends JApplet public void
init() public void paint(Graphics g)

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import java.awt. import javax.swing. public
class Example1 extends JApplet public void
init() public void paint(Graphics g)

import???? C??include????? ????????????
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import java.awt. import javax.swing. public
class Example1 extends JApplet public void
init() public void paint(Graphics g)

Example1????????????? ??Example1.java?????? ???
??????????????
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import java.awt. import javax.swing. public
class Example1 extends JApplet public void
init() public void paint(Graphics g)

??????????????????? ?????????????
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import java.awt. import javax.swing. public
class Example1 extends JApplet public void
init() public void paint(Graphics g)

?????? ?????????????? ?????????????
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??????
???????????????????
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drawLine
drawLine(x1,y1,x2,y2) ?(x1?y1)???(x2?y2)???????
drawLine(100,100,200,200) ????(100,100)??(200,20
0)???????
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drawRect
drawRect(x1,y1,w,h) ?(x1?y1)???w???h?????????
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fillRect
fillRect(x1,y1,w,h) ?(x1?y1)???w,??h,????????????
??
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drawOval
drawOval(x1,y1,w,h) ?(x1?y1)???w???h?????????????
?
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fillOval
drawOval(x1,y1,w,h) ?(x1?y1)???w???h?????????????
???????
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??????????
public void paint(Graphics g)
g.drawLine(100,100,200,200)
g.drawOval(200,100,50,50) g.fillRect(100,300,8
0,40) g.drawRect(300,100,50,80)
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?1? ???
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