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Java Program to shift bits in a BigInteger
To shift bits in a BigInteger, use the shiftLeft() or shiftRight() method.
shiftLeft() method
The java.math.BigInteger.shiftLeft(int n) returns a BigInteger whose value is (this << n). The shift distance, n, may be negative, in which case this method performs a right shift. It computes floor(this * 2n).
Example
import java.math.*;
public class Demo {
public static void main(String[] args) {
BigInteger one;
one = new BigInteger("15");
one = one.shiftLeft(2);
System.out.println("Result: " +one);
}
}Output
Result: 60
shiftRight() method
The java.math.BigInteger.shiftRight(int n) returns a BigInteger whose value is (this >> n). Sign extension is performed. The shift distance, n, may be negative, in which case this method performs a left shift. It computes floor(this / 2n).
Example
import java.math.*;
public class Demo {
public static void main(String[] args) {
BigInteger one;
one = new BigInteger("25");
one = one.shiftRight(3);
System.out.println("Result: " +one);
}
}Output
Result: 3
Updated on: 25-Jun-2020
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