What happens when using the syntax String s1 = "asd"?

When using the syntax String s1 = "asd"; the following occurs:

1. The JVM checks the String Pool (a special area of memory in the heap) for the string literal "asd".
2. If "asd" already exists in the String Pool, the variable s1 references the existing object in the pool.
3. If "asd" is not present in the String Pool:
   • A new String object with the value "asd" is created in the String Pool.
   • The variable s1 references this newly created object in the pool.

This mechanism is called String Interning and helps save memory by avoiding the creation of duplicate string literals.