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|Very frequently asked. Among first few questions in almost all interviews. Among Top 5 frequently asked questions. Frequently asked in Indian service companies (HCL,TCS,Infosys,Capgemini etc based on multiple feedback )|
|Ans. "equals" is the method of object class which is supposed to be overridden to check object equality, whereas "==" operator evaluate to see if the object handlers on the left and right are pointing to the same object in memory.|
x.equals(y) means the references x and y are holding objects that are equal. x==y means that the references x and y have same object.
String x = new String("str");
String y = new String("str");
System.out.println(x == y); // prints false
System.out.println(x.equals(y)); // prints true
Sample Code for equals
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Try 6 Question(s) Test
|What is the difference between = and == in Java ?|
|How is == operator different for objects and primitive types ?|
| What will be the output of following code|
Integer x = 1;
Integer y = 2;
System.out.println(x == y);
What if you change 1 to "1" and Integer to String?