帮你写一个，其实这种都是很简单的问题，要把基础学好：
public
class
Student
{
private
String
name;
private
int
age;
public
Student(String
name,
int
age)
{
this.name
=
name;
this.age
=
age;
}
public
String
out(){
return
"姓名:"+this.name+"\n"+"年龄:"+this.age;
}
public
static
void
main(String[]
args)
{
Student
stu=new
Student("张三",
18);
System.out.println(stu.out());
}
}
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