13. Find The first set bit of the given number from left

aryan agarwal answered on August 26, 2023 Popularity 1/10 Helpfulness 1/10

answer 13. Find The first set bit of the given number from left

13. Find The first set bit of the given number from left

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public class FirstSetBitPosition {
    public static void main(String[] args) {
        int num = 80; // Example number: 80

        int position = findFirstSetBitPosition(num);

        if (position != -1) {
            System.out.println("The first set bit position is: " + position);
        } else {
            System.out.println("No set bits found in the number.");
        }
    }

    // Function to find the position of the first set bit (1)
    public static int findFirstSetBitPosition(int num) {
        int position = 0;

        while (num > 0) {
            if ((num & 1) == 1) {
                return position + 1; // Adding 1 because positions are usually 1-indexed
            }
            num >>= 1; // Right shift by 1 to check the next bit
            position++;
        }

        return -1; // Return -1 if no set bits are found
    }
}

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Source: chat.openai.com

Tags: bit find set whatever

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Contributed on Aug 26 2023

aryan agarwal

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13. Find The first set bit of the given number from left

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