example.java

200多个自己编的java程序,大家可以学一下.

class ExSuper{ 
String name; 
String nick_name; 
public ExSuper(String s,String t){ 
name = s;
nick_name = t; 
} 
public String toString(){ 
return name; 
} } 
public class Example extends ExSuper{ 
public Example(String s,String t){ 
super(s,t); 
} 
public String toString(){ 
return name +"a.k.a"+nick_name;
} 
public static void main(String args[]){
ExSuper a = new ExSuper("First","1st");
ExSuper b = new Example("Second","2nd");
System.out.println("a is"+a.toString());
System.out.println("b is"+b.toString());
}
}