import java.applet.*;
import java.awt.*;
public class Appletparam extends Applet
{
private String name;
private String sex;
private int num;
private int age;
public void init()
{
setBackground(Color.gray);
name=this.getParameter("myName:");
sex=this.getParameter("mySex");
num=Integer.parseInt(this.getParameter("myNum"));
age=Integer.parseInt(this.getParameter("myAge"));
}
public void paint(Graphics g)
{
g.setColor(Color.blue);
g.drawString("my name is :"+name, 10, 20);
g.drawString("my sex is :"+sex, 10, 40);
g.drawString("my num is :"+num, 10,60);
g.drawString("my age is :"+age, 10, 80);
}
}我在写了个
<html>
<body>
<Applet code="Appletparam.class" height=400 width=400>
<param name=myName value="kaka">
<param sex=mySex value="mail">
<param num=myNum value=200630170>
<param age=myAge value=22>
</Applet>
</body>
</html>
运行结果是 Applet出错
import java.awt.*;
public class Appletparam extends Applet
{
private String name;
private String sex;
private int num;
private int age;
public void init()
{
setBackground(Color.gray);
name=this.getParameter("myName:");
sex=this.getParameter("mySex");
num=Integer.parseInt(this.getParameter("myNum"));
age=Integer.parseInt(this.getParameter("myAge"));
}
public void paint(Graphics g)
{
g.setColor(Color.blue);
g.drawString("my name is :"+name, 10, 20);
g.drawString("my sex is :"+sex, 10, 40);
g.drawString("my num is :"+num, 10,60);
g.drawString("my age is :"+age, 10, 80);
}
}我在写了个
<html>
<body>
<Applet code="Appletparam.class" height=400 width=400>
<param name=myName value="kaka">
<param sex=mySex value="mail">
<param num=myNum value=200630170>
<param age=myAge value=22>
</Applet>
</body>
</html>
运行结果是 Applet出错
age=Integer.parseInt(this.getParameter("myAge")); 这2个你先去掉吧,我怀疑出了异常了。
import java.awt.*;
public class Appletparam extends Applet
{
private String name;
private String sex;
private int num;
private int age;
public void init()
{
setBackground(Color.gray);
name=getParameter("myName");
sex=getParameter("mySex");
num=Integer.parseInt(getParameter("myNum"));
age=Integer.parseInt(getParameter("myAge"));
}
public void paint(Graphics g)
{
g.setColor(Color.blue);
g.drawString("my name is :"+name, 10, 20);
g.drawString("my sex is :"+sex, 10, 40);
g.drawString("my num is :"+num, 10,60);
g.drawString("my age is :"+age, 10, 80);
}
}
<html>
<body>
<Applet code="Appletparam.class" height=400 width=400>
<param name=myName value="kaka">
<param name=mySex value="mail">
<param name=myNum value=200630170>
<param name=myAge value=22>
</Applet>
</body>
</html>
还有html中:设置传递参数语法为:
<param name=... value=...> 标记需要名称属性。
<param name=... value=...> 标记需要名称属性。
<param name=... value=...> 标记需要名称属性。
所以对应的应该为:
<param name=myName value="kaka">
<param name=mySex value="mail">
<param name=myNum value=200630170>
<param name=myAge value=22>
所以你执行错误的时候应该有提示~ 自己检查下就好了
前面执行的发现 name:null;
import java.applet.*;
import java.awt.*;
public class Appletparam extends Applet
{
private String name;
private String sex;
private int num;
private int age;
public void init()
{
setBackground(Color.gray);
name=getParameter("myName");
sex=getParameter("mySex");
num=Integer.parseInt(getParameter("myNum"));
age=Integer.parseInt(getParameter("myAge"));
}
public void paint(Graphics g)
{
g.setColor(Color.blue);
g.drawString("my name is :"+name, 10, 20);
g.drawString("my sex is :"+sex, 10, 40);
g.drawString("my num is :"+num, 10,60);
g.drawString("my age is :"+age, 10, 80);
}
}
这个应该没有问题了~ html不变
<html>
<body>
<Applet code="Appletparam.class" height=400 width=400>
<param name=myName value="kaka">
<param name=mySex value="mail">
<param name=myNum value=200630170>
<param name=myAge value=22>
</Applet>
</body>
</html>