Java lang.Long.byteValue() method in Java with Examples
Last Updated :
23 May, 2019
Improve
java.lang.Long.byteValue() is a built-in function in Java that returns the value of this Long as a byte.
Syntax:
java
Output:
java
Output:
java
Output:
java
Output:
public byte byteValue() Parameters: The function does not accept any parameter. Return : This method returns the numeric value represented by this object after conversion to byte type.Examples:
Input : 12 Output : 12 Input : 1023 Output : -1The program below illustrates the java.lang.Long.byteValue() function: Program 1 :
// Java program that demonstrates the use of
// Long.byteValue() function
// include lang package
import java.lang.*;
public class GFG {
public static void main(String[] args)
{
Long value = 1023l;
// returns the value of Long as a byte
byte byteValue = value.byteValue();
System.out.println("Byte Value of num = " + byteValue);
// 2nd example
value = 12l;
byteValue = value.byteValue();
System.out.println("Byte Value of num = " + byteValue);
}
}
// Java program that demonstrates the use of// Long.byteValue() function// include lang packageimport java.lang.*;public class GFG { public static void main(String[] args) { Long value = 1023l; // returns the value of Long as a byte byte byteValue = value.byteValue(); System.out.println("Byte Value of num = " + byteValue); // 2nd example value = 12l; byteValue = value.byteValue(); System.out.println("Byte Value of num = " + byteValue); }}Byte Value of num = -1 Byte Value of num = 12Program 2 : Demonstrates the byte value of a negative number
// Java program that demonstrates the use of
// Long.byteValue() function
// negative number
// include lang package
import java.lang.*;
public class GFG {
public static void main(String[] args)
{
Long value = -1023l;
// returns the value of Long as a byte
byte byteValue = value.byteValue();
System.out.println("Byte Value of num = " + byteValue);
// 2nd example
value = -12l;
byteValue = value.byteValue();
System.out.println("Byte Value of num = " + byteValue);
}
}
// Java program that demonstrates the use of// Long.byteValue() function// negative number// include lang packageimport java.lang.*;public class GFG { public static void main(String[] args) { Long value = -1023l; // returns the value of Long as a byte byte byteValue = value.byteValue(); System.out.println("Byte Value of num = " + byteValue); // 2nd example value = -12l; byteValue = value.byteValue(); System.out.println("Byte Value of num = " + byteValue); }}Byte Value of num = 1 Byte Value of num = -12Program 3 : When a decimal value is passed in argument.
// Java program that demonstrates the use of
// Long.byteValue() function
// decimal number
// include lang package
import java.lang.*;
public class GFG {
public static void main(String[] args)
{
Long value = 11.24;
// returns the value of Long as a byte
byte byteValue = value.byteValue();
System.out.println("Byte Value of num = " + byteValue);
}
}
// Java program that demonstrates the use of// Long.byteValue() function// decimal number// include lang packageimport java.lang.*;public class GFG { public static void main(String[] args) { Long value = 11.24; // returns the value of Long as a byte byte byteValue = value.byteValue(); System.out.println("Byte Value of num = " + byteValue); }}prog.java:13: error: incompatible types: double cannot be converted to Long
Long value = 11.24;
Program 4 : When a string value is passed in argument.
// Java program that demonstrates the use of
// Long.byteValue() function
// string number
// include lang package
import java.lang.*;
public class GFG {
public static void main(String[] args)
{
Long value = "24";
// returns the value of Long as a byte
byte byteValue = value.byteValue();
System.out.println("Byte Value of num = " + byteValue);
}
}
// Java program that demonstrates the use of// Long.byteValue() function// string number// include lang packageimport java.lang.*;public class GFG { public static void main(String[] args) { Long value = "24"; // returns the value of Long as a byte byte byteValue = value.byteValue(); System.out.println("Byte Value of num = " + byteValue); }}prog.java:13: error: incompatible types: String cannot be converted to Long
Long value = "24";
