Java BigInteger valueOf() method

The valueOf() method of Java BigInteger class returns a BigInteger whose value is equal to that of the specified long.

Syntax:

Parameter:

val - value of the BigInteger to return.

Returns:

This method returns a BigInteger with the specified value.

Exception:

Note: This static factory method is provided in preference to a (long) constructor because it allows for reuse of regularly used BigIntegers.

Example 1

import java.math.BigInteger;
public class BigIntegerValueOfExample1 {
	public static void main(String[] args) {
		// create a BigInteger object
		BigInteger big1;
		// create and assign value to Long object
		Long long1 = new Long(123456789L);
		// assign the biginteger value of long1 to big1
		// static method is called using class name
		big1 = BigInteger.valueOf(long1);
		String str = "BigIntger value of Long "+long1+" is "+big1;
		// print big1 value
		System.out.println(str);
	}
}

Test it Now

Output:

BigIntger value of Long 123456789 is 123456789

Example 2

import java.math.BigInteger;
public class BigIntegerValueOfExample2 {
	public static void main(String[] args) {
		// create a BigInteger object
		BigInteger big1;
		// create and assign value to Long object
		Long long1 = new Long(25);
		// assign the biginteger value of long1 to big1
		// static method is called using class name
		big1 = BigInteger.valueOf(long1);
		String str = "BigIntger value of Long "+long1+" is "+big1;
		// print big1 value
		System.out.println(str);
	}
}

Test it Now

Output:

BigIntger value of Long 25 is 25

Example 3

import java.math.BigInteger;
public class BigIntegerValueOfExample3 {
	public static void main(String[] args) {
		// create a BigInteger object
		BigInteger big1;
		// create and assign value to Long object
		Long long1 = new Long(12345);
		// assign the biginteger value of long1 to big1
		// static method is called using class name
		big1 = BigInteger.valueOf(long1);
		String str = "BigIntger value of Long "+long1+" is "+big1;
		// print big1 value
		System.out.println(str);
	}
}

Test it Now

Output: