1.What is the output of following Program?
Create Heap and Stack diagram for the
following Program.
class Customer
{
private String name;
private int id;
public Customer(String name , int id)
{
this.name=name;
this.id=id;
}
public void setId(int id) //setter
{
this.id=id;
}
public int getId() //getter
{
return id;
}
}
class Test
{
public static void main(String[] args)
{
int val=100;
Customer c = new Customer("Ravi",2);
m1(c);
//GC
System.out.println(c.getId());
}
public static void m1(Customer c)
{
c.setId(5);
c = new Customer("Rahul",7);
c.setId(9);
System.out.println(c.getId());
}
}
2 What is the output of following Program? Create Heap and Stack diagram for the
following Program.
public class Employee
{
int id=100;
public static void main(String[] args)
{
int val=200;
Employee e1 = new Employee();
e1.id=val;
update(e1);
System.out.println(e1.id);
Employee e2 = new Employee();
e2.id=500;
switchEmployees(e2,e1);
//GC
System.out.println(e1.id);
System.out.println(e2.id);
}
public static void update(Employee e)
{
e.id=900;
e=new Employee();
e.id=400;
}
public static void switchEmployees(Employee e1,Employee e2)
{
int temp=e1.id;
e1.id=e2.id;
e2= new Employee();
e2.id=temp;
}
}
