Question

String w1;

String w2 = "apple";
String w3 = "banana";

What is stored in w1 by the following?

w1 = w2.toUpperCase();

Answer 1

The value stored in w1 after "w1 = w2.toUpperCase();" is "APPLE" as it converts the content of w2 to uppercase.

Step-by-step explanation:

In the given code snippet, "w1 = w2.toUpperCase();" assigns the uppercase version of the string stored in w2 to w1.

Therefore, after this operation, the value stored in w1 will be "APPLE".

The toUpperCase() method in Java converts all characters in the provided string to uppercase.

In this case, as w2 contains the string "apple", calling toUpperCase() on w2 transforms it into "APPLE".

This transformation does not alter the original string (w2), but it produces a new string with all uppercase characters, which is then assigned to w1.

As a result, w1 holds the value "APPLE" after this operation while w2 retains its original value "apple".