In Java, we can use BigInteger.valueOf(int) to convert int to a BigInteger
JavaExample.java
package com.mkyong;
import java.math.BigInteger;
public class JavaExample {
public static void main(String[] args) {
int n = 100;
System.out.println(n);
// convert int to Integer
Integer integer = Integer.valueOf(n);
System.out.println(integer);
// convert int to BigInteger
BigInteger bigInteger = BigInteger.valueOf(n);
System.out.println(bigInteger);
// convert Integer to BigInteger
//BigInteger bigInteger2 = BigInteger.valueOf(integer); // works
BigInteger bigInteger2 = BigInteger.valueOf(integer.intValue());
System.out.println(bigInteger2);
}
}
Output
100
100
100
100
int n = 100;
BigInteger bigInteger = BigInteger.valueOf(n);
when we write like this it is throwing error.
BigInteger.valueOf() only accepting long value not int value.
So we have to store value like:
long n = 100;
BigInteger bigInteger = BigInteger.valueOf(n);
Four