In which class hashCode() is present. 6. Suppose Student of property Name and Id and - Student s1 = new Student(null,01); Student s2 = new Student("abc",01); if(s1 == s2) : o/p if(s1.equals(s2)) : o/p - Student s1 = new Student("abc",01); Student s2 = new Student("abc",01); if(s1 == s2) : o/p if(s1.equals(s2)) : o/p program to make them equal.