Consider the following Java code snippet, which of these options is the right ou

Question

Consider the following Java code snippet, which of these options is the right output of this code snippet?

    public class ComparisonDemo
    {
        public static void main(String[] args)
        {
            Employee emp1 = new Employee("John", "Smith");
            Employee emp2 = new Employee("John", "Smith");
            Employee emp3 = emp1;
            
            System.out.printf("[1] %s ", emp1.equals(emp2) ? "emp1 equals emp2" : "emp1 does not equal emp2");
            System.out.printf("[2] %s ", emp1.equals(emp3) ? "emp1 equals emp3" : "emp1 does not equal emp3");
            System.out.printf("[3] %s ", (emp1 == emp2) ? "emp1 equals emp2" : "emp1 does not equal emp2");
            System.out.printf("[4] %s ", (emp1 == emp3) ? "emp1 equals emp3" : "emp1 does not equal emp3");
            System.out.println();       
        }        
    }

[1] emp1 does not equal emp2
[2] emp1 equals emp3
[3] emp1 does not equal emp2
[4] emp1 equals emp3

[1] emp1 equals emp2
[2] emp1 equals emp3
[3] emp1 equals emp2
[4] emp1 equals emp3

[1] emp1 equals emp2
[2] emp1 does not equal emp3
[3] emp1 equals emp2
[4] emp1 does not equal emp3

None of the above

[1] emp1 does not equal emp2
[2] emp1 equals emp3
[3] emp1 does not equal emp2
[4] emp1 equals emp3

[1] emp1 equals emp2
[2] emp1 equals emp3
[3] emp1 equals emp2
[4] emp1 equals emp3

[1] emp1 equals emp2
[2] emp1 does not equal emp3
[3] emp1 equals emp2
[4] emp1 does not equal emp3

None of the above

Explanation / Answer

Ans) b

[1] emp1 equals emp2
[2] emp1 equals emp3
[3] emp1 equals emp2
[4] emp1 equals emp3

_________

Reason:

Employee emp1 = new Employee("John", "Smith");
Employee emp2 = new Employee("John", "Smith");

//Creating Employee objects emp1 and emp2 wiith the same contents.
Employee emp3 = emp1;//Assigning the Employee object emp1 to the reference of emp3;

All Employee objects are having same contents .So option B is correct

_________________ThankYou

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.