Question

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What is the difference between “text” and new String(“text”) in Java?

Please explain the brief and detailed difference between following 2 statements:

String a= "somevalue";
String b = new String("somevalue");

I know that 2nd statement creates and provide memory to String Object b in heap. But why object a doesn’t get memory and its still allowed to operate on string methods.

Answer 1

a and b are references to Objects, not Objects.

When you do a = b; it doesn’t copy the Object, it copies a reference to an Object.

A String has a char[] inside it which is another object.

a gets an reference to an existing object so it may not need any extra memory.

b get a reference to a newly created object so that requires more memory.

its still allowed to operate on string methods.

This has nothing to do with how the object was created.