封装的日间示例

public class friend1
{
string name;
long mobileno; 
private int atmpin; 

public friend1(string name, long mobileno, int atmpin)
{
this.name = name; 
this.mobileno = mobileno; 
this.atmpin = atmpin; 
}

public static void main(string[] args)
{
friend1 f1 = new friend1("kavin", 1234, 1111);
f1.withdraw();

}
private void withdraw()
{
system.out.println(atmpin);
}
public void tour()
{
system.out.println("going for a ride");
}

public void publish_results()
{
system.out.println("pass with good marks ");
}




}
class Friend2
{

public static void main(String[] args)
{

Friend1 ff = new Friend1("Arul",3434,2323);
ff.tour();
ff.wi

thdraw(); } }

输出: