public class person1
{
static int count=0;
protected String name;
protected int age;
public person1(String n1,int a1)
{
this.name=n1;
this.age=a1;
this.count++;
}
public int oldthen(person1 yaoming)
{
person1 pan=this;
return pan.age-yaoming.age;
}
public void print()
{
System.out.println("count="+this.count+" name="+this.name+" age="+this.age);
}
}
public student extends person1
{
protected String xibie;
public student(String n1,int a1,String xd)
{
super(n1,a1);
xibie="xd";
}
public static void main (String[] args)
{
person1 p1=new person1("姚明"，25);
p1.print();
student t1=new student("PP"，28，"计算机系");
t1.print();
System.out.println("年龄差"+p1.olderthen(t1));
}
}
下面是出错提示：
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:31: 需要为 class、interface 或 enum
public student extends person1
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:34: 需要为 class、interface 或 enum
public student(String n1,int a1,String xd)
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:37: 需要为 class、interface 或 enum
xibie="xd";
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:38: 需要为 class、interface 或 enum
}
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:39: 需要为 class、interface 或 enum
public static void main (String[] args)
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:41: 非法字符： \65292
person1 p1=new person1("姚明"，25);
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:42: 需要为 class、interface 或 enum
p1.print();
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:43: 需要为 class、interface 或 enum
student t1=new student("PP"，28，"计算机系");
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:43: 非法字符： \65292
student t1=new student("PP"，28，"计算机系");
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:43: 非法字符： \65292
student t1=new student("PP"，28，"计算机系");
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:44: 需要为 class、interface 或 enum
t1.print();
^
C:\Users\wei\Documents\JCreator Pro\MyProjects\person1\src\person1.java:46: 需要为 class、interface 或 enum
}
^
12 错误
Process complet
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