//5.6 equalsۺӦʾ
class Student
{
	
	String name;
  int age;
  public boolean equals(Object obj)
	{
		Student st=null;
		if(obj instanceof Student)
		st = (Student)obj;
		else
		return false;
    	if(st.name==this.name && st.age==this.age)
    	   return true;
		else
    	   return false;
   }
}
public class Test
{   
	public static void main(String[] args)
	{  
		Student p=new Student();
		Student q=new Student();
		Student r=p;
		p.name="xyz";
		p.age=13;
		q.name="xyz";
		q.age=13;
		System.out.println(p==q);
		System.out.println(p.equals(q));
		System.out.println(p==r);
	}
}
