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Core java - Interview Questions and Answers for 'Ebix' - 2 question(s) found - Order By Newest | ||||
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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. Sample code: 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 | ||||
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![]() Integer x = 1; Integer y = 2; System.out.println(x == y); What if you change 1 to "1" and Integer to String? | ||||
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Ans. String s1 = "akhilesh"; char[] ch = s1.toCharArray(); for (int i = ch.length-1 ; i >=0 ; i--) { System.out.print(ch[i]); } | ||||
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![]() or What is the difference between String , StringBuilder and StringBuffer ? | ||||
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![]() a. It should be declared public and static b. it should have only 1 argument of type String array c. We can override main method d. We can overload main method | ||||