Variable Declaration In Java
You can declare a variable in Java same as C, C++. It has the same syntax which is given below:
Where type is the data type which a variable will hold. As given in program, println( ) is used to display the string "The value of num : 12"
The print( ) method is same as println( ), except that it does not output a newline character after each call.
PROGRAM
The output of program is as below:
OUTPUT
type var-name;
Where type is the data type which a variable will hold. As given in program, println( ) is used to display the string "The value of num : 12"
The print( ) method is same as println( ), except that it does not output a newline character after each call.
PROGRAM
/*
This is a second Java program.
Call this file as "VarDeclDemo.java".
*/
public class VarDeclDemo {
public static void main(String[] args) {
int num; // This declare a variable called num
num = 12; // This assigns a value to num
System.out.println("The value of num : " + num);
num = num + 10;
System.out.print("The value of num + 10 : ");
System.out.println(num);
}
}
The output of program is as below:
OUTPUT
C:\>javac VarDeclDemo.java C:\>java VarDeclDemo The value of num : 12 The value of num + 10 : 22