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一个关于AWT的新手问题,请各位大侠指教!在线等待

摘要: 一个关于AWT的新手问题,请各位大侠指教!在线等待


初练AWT,但是第一个练习就出了问题;
import java.awt.*;

public class Ui extends java.applet.Applet{

public void init(){

setBackground(Color.white);

}
public void draw(){


add(new Label(-#34;Your name:-#34;));

add(new TextField(30));

add(new Label(-#34;Sex:-#34;));

CheckboxGroup cbg=new CheckboxGroup();

add(new Checkbox(-#34;Male-#34;,cbg,true));

add(new Checkbox(-#34;Famale-#34;,cbg,false));

add(new Label(-#34;What are you like:-#34;));

add(new Checkbox(-#34;Apple-#34;));

add(new Checkbox(-#34;Orange-#34;));

add(new Checkbox(-#34;Strawberry-#34;));

add(new Checkbox(-#34;Peach-#34;));

add(new Label(-#34;How much do you eat them per week:-#34;));

Choice c=new Choice();

c.addItem(-#34;less than 1kg-#34;);

c.addItem(-#34;1kg to 3kg-#34;);

c.addItem(-#34;more than 3kg-#34;);

add(c);

add(new Label(-#34;What-#39;s your opnion of eat fruit:-#34;));

add(new TextArea(-#34;I think-#34;,3,60));

add(new Button(-#34;OK-#34;));

add(new Button(-#34;Clear-#34;));
}
}
最后却一连一个标识都没显出来了!不知道是什么原因,请各位大侠指教!



是你的public void draw()这个方法没有调用哈!

import java.awt.*;

public class awtlist extends java.applet.Applet{

public void init(){

setBackground(Color.white);


add(new Label(-#34;Your name:-#34;));

add(new TextField(30));

add(new Label(-#34;Sex:-#34;));

CheckboxGroup cbg=new CheckboxGroup();

add(new Checkbox(-#34;Male-#34;,cbg,true));

add(new Checkbox(-#34;Famale-#34;,cbg,false));

add(new Label(-#34;What are you like:-#34;));

add(new Checkbox(-#34;Apple-#34;));

add(new Checkbox(-#34;Orange-#34;));

add(new Checkbox(-#34;Strawberry-#34;));

add(new Checkbox(-#34;Peach-#34;));

add(new Label(-#34;How much do you eat them per week:-#34;));

Choice c=new Choice();

c.addItem(-#34;less than 1kg-#34;);

c.addItem(-#34;1kg to 3kg-#34;);

c.addItem(-#34;more than 3kg-#34;);

add(c);

add(new Label(-#34;What-#39;s your opnion of eat fruit:-#34;));

add(new TextArea(-#34;I think-#34;,3,60));

add(new Button(-#34;OK-#34;));

add(new Button(-#34;Clear-#34;));
}


}



楼上所言极是


谢谢两位大虾,送分!


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