What must you do before you can use a variable in a Java application?
A) delcare it
B) check its data type
C) display it
D) store it in the manifest

Question

Quizplus · Accepted Answer

In Java, you must first declare a variable before you can use it. This involves specifying its data type and giving it a name. Once declared, the variable can be assigned a value and used in the application.

What Must You Do Before You Can Use a Variable