Home »
Java Programs »
Java Basic Programs
Java program to reverse bits of the given number
Given/input an integer number, we have to reverse bits of the given number.
Submitted by Nidhi, on March 06, 2022
Problem Solution:
In this program, we will read an integer number and reverse the bits of the given number using bitwise operators.
Program/Source Code:
The source code to reverse bits of the given number is given below. The given program is compiled and executed successfully.
// Java program to reverse bits of
// the given number
import java.util.Scanner;
public class Main {
static int reverseBits(short data) {
int revNum = 0;
int i = 0;
int temp = 0;
for (i = 0; i < 16; i++) {
temp = (data & (1 << i));
if (temp != 0)
revNum |= (1 << ((16 - 1) - i));
}
return revNum;
}
public static void main(String[] args) {
short num = 0x4;
System.out.printf("Number after reversing bits: %d", reverseBits(num));
}
}
Output:
Number after reversing bits: 8192
Explanation:
In the above program, we imported the "java.util.Scanner" package to read input from the user. And, created a public class Main. It contains a static method main().
The main() method is an entry point for the program. Here, we created a variable num initialized with 0x4. Then we reversed the bites of number and printed the result.
Java Basic Programs »