Java - Byte longValue() method

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Description

The Java Byte longValue() returns the value of this Byte as a long.

Declaration

Following is the declaration for java.lang.Byte.longValue() method

public long longValue()

Specified by

longValue in class Number

Parameters

NA

Return Value

This method returns the numeric value represented by this object after conversion to type long.

Exception

NA

Example 1

The following example shows the usage of Byte longValue() method with Byte object created using new operator. We're creating a Byte variable and assigned it an Byte object created using new operator. Then a long variable is created and assigned a long value using longValue() method and then result is printed.

package com.tutorialspoint;
public class ByteDemo {
   public static void main(String[] args) {

      // create a Byte object b
      Byte b;

      // assign value to b
      b = new Byte("100");

      // create a long primitive d
      long d;

      // assign primitive value of b to d
      d = b.longValue();

      String str = "Primitive long value of Byte object " + b + " is " + d;

      // print d value
      System.out.println( str );
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Primitive long value of Byte object 100 is 100

Example 2

The following example shows the usage of Byte longValue() method with Byte object created using valueOf(String) method. We're creating a Byte variable and assigned it an Byte object created using valueOf(String) method. Then a long variable is created and assigned a long value using longValue() method and then result is printed.

package com.tutorialspoint;
public class ByteDemo {
   public static void main(String[] args) {

      // create a Byte object b
      Byte b;

      // assign value to b
      b = Byte.valueOf("100");

      // create a long primitive d
      long d;

      // assign primitive value of b to d
      d = b.longValue();

      String str = "Primitive long value of Byte object " + b + " is " + d;

      // print d value
      System.out.println( str );
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Primitive long value of Byte object 100 is 100

Example 3

The following example shows the usage of Byte longValue() method with Byte object created using valueOf(byte) method. We're creating a Byte variable and assigned it an Byte object created using valueOf(byte) method. Then a long variable is created and assigned a long value using longValue() method and then result is printed.

package com.tutorialspoint;
public class ByteDemo {
   public static void main(String[] args) {

      // create a Byte object b
      Byte b;

      // assign value to b
      b = Byte.valueOf((byte) 100);

      // create a long primitive d
      long d;

      // assign primitive value of b to d
      d = b.longValue();

      String str = "Primitive byte value of Byte object " + b + " is " + d;

      // print d value
      System.out.println( str );
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Primitive byte value of Byte object 100 is 100