How to Declare Variables in Java
See Java: Tips and Tricks for similar articles.To reference a variable in a Java program, you must first declare it. To declare a variable, follow these four steps.
- Open your text editor and create a new file. Type in the following Java statements:
Two variables are declared. The first variable is of type
int
. A value is established in a separate Java statement. The second variable is of typeString
and is declared with an initial value. - Save your file as DeclareVariablesInJava.java.
- Open a command prompt and navigate to the directory containing your new Java program. Then type in the command to compile your program and hit Enter.
- Now run your Java program. Type in the command to run the Java runtime launcher and hit Enter. Notice the value of your variables in the program's output.
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