Define a constant value and use it : Constant « Language « Java Tutorial

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Java Tutorial » Language » Constant

1. 6. 2. Define a constant value and use it

Using the final keyword to declare a variable.
The final keyword specifies that the value of a variable is final and cannot be changed.
It is a convention in Java to write constants in uppercase letters.


public class MainClass {



  public static void main(String[] arg) {

    final int FEET_PER_YARD = 3;          // Constant values

    final double MM_PER_INCH = 25.4;      // that cannot be changed



    System.out.println(FEET_PER_YARD);

    System.out.println(MM_PER_INCH);

    

  }



}

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25.4

1. 6. Constant
	1. 6. 1.	Define constant
	1. 6. 2.	Define a constant value and use it

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