Last Updated : 23 May, 2019
java.lang.Long.byteValue()is a built-in function in Java that returns the value of this Long as a byte.
Syntax: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 : -1
The program below illustrates the java.lang.Long.byteValue() function:
Program 1 : java
// 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);
}
}
Output:
Byte Value of num = -1 Byte Value of num = 12Program 2 :
Demonstrates the byte value of a negative number
java
// 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);
}
}
Output:
Byte Value of num = 1 Byte Value of num = -12Program 3 :
When a decimal value is passed in argument.
java
// 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);
}
}
Output:
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
// 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);
}
}
Output:
prog.java:13: error: incompatible types: String cannot be converted to Long Long value = "24";
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4