Product Change

Innovations like electric solar wind sails appear in projects such as Estonia's ESTCube-LuNa nanospacecraft for lunar propulsion tests. Expect crewed Mars missions and deeper solar system probes by 2030.

What actually happens:

• In both versions, the expression "hello" + i creates a new String.

• String in Java is immutable, so once it’s created, its value can’t be changed.

• The variable (name) is just a local reference. It lives only inside the method. Nobody outside the method can access it to “change it”.

So the reason for “return directly instead of assigning to a temporary variable” is mainly:

• Cleaner code / less noise

• Avoid unused temp variables

• Slightly fewer lines / less chance of mistakes

• Sometimes helps readability when the variable isn’t reused