Exam 1z0-808 topic 1 question 168 discussion

Tested. B

Answer is B. To test: public static void main(String[] args) { String str1 = "Java"; String str2 = new String("java"); if(str2.equals(str1.toLowerCase())) //line n1 { System.out.println("Equal"); } else { System.out.println("Not Equal"); } }

The answer is letter B, you can finish by eliminating the others that are very wrong. There's no way to be A or C because the first line of the 2 answers makes an operation useless because String is immutable, you would have to assign the operation to a variable. The letter D is wrong because you don't compare a String with "==", because String is not a primitive variable and even being equal it will give false, to get around this you have to use the "equals" method that will compare the substrings of the String, which is what is done in answer B.