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

Question

What is the difference between these two following statements?

String s = \"text\";

String s = new String(\"text\");

Answer 1

String literals will go into String Constant Pool.

The below snapshot might help you to understand it visually to remember it for longer time.

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Object creation line by line:

String str1 = new String("java5");

Using string literal "java5" in the constructor, a new string value is stored in string constant pool. Using new operator, a new string object is created in the heap with "java5" as value.

String str2 = "java5"

Reference "str2" is pointed to already stored value in string constant pool

String str3 = new String(str2);

A new string object is created in the heap with the same value as reference by "str2"

String str4 = "java5";

Reference "str4" is pointed to already stored value in string constant pool

Total objects : Heap - 2, Pool - 1

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