Find the second last digit of a number in Java

 

In this tutorial, we will be solving the problem of finding the second last digit of a number in Java.

We will use a simple trick to solve this problem efficiently.

 

There are various tricks you can apply when solving problem-solving related questions.

Steps to Solve the Problem

1. Create a class named check23: Inside this class, we will take an integer variable.
2. Assign a value: For the time being, let’s assign a 6-digit value for checking.
3. Get the last two digits: To get the last two digits, we will take the remainder when dividing the number by 100.
4. Extract the second last digit: After getting the last two digits, we will divide the result by 10 to get the second last digit.
5. Use Math.abs method: To ensure we get the value in an absolute manner, we will use the Math.abs method. This method ensures the value is positive, regardless of its sign.
6. Display the result: Finally, we will display the result using the System.out.print method.

public class check23 {
    public static void main(String[] args) {
        int i = 123456;
        System.out.print(Math.abs((i % 100) / 10));
    }
}

Define the class and main method:

public class check23 {
    public static void main(String[] args) {

Initialize the integer variable:

int i = 123456;

Calculate the second last digit:

System.out.print(Math.abs((i % 100) / 10));

Sample Output

After successfully compiling and running the above code, the output will be: 0

 

You can also find another solution the given problem here:  https://www.codespeedy.com/java-program-to-find-second-last-digit-of-a-number/