Java String Handling Interview Question : What is the difference between String s1 = "Java"; and String s2 = new String("Java"); ?

 String s1 = "Java";

This creates a string literal. The JVM looks for "Java" in the String Constant Pool.

If it finds it, s1 will point to that existing string.

If not, it creates a new string "Java" in the pool and s1 will point to it.

String s2 = new String("Java");

This always creates a new String object in the heap memory, regardless of whether "Java" is in the pool or not.

Consider this code:

String s1 = "Java";

String s2 = "Java";

String s3 = new String("Java");

System.out.println(s1 == s2); // true (both point to the same object in the pool)

System.out.println(s1 == s3); // false (s3 is a new object in the heap)

Regards:

Trilochan Tarai

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