In this program, we are going to print day name based on week no. Like – If the user enters 1 that means it is Monday.

Logic

After taking input (Week no) from the user, we have to compare that number with 1 to 7 or we can say comparing that number with a day of a week. So the logic goes like – if the number is equal to 1 then it is Monday, if the number is 2 then it is Tuesday etc… Like that we have to compare with each day of the week.

Program

DayName.javaCopy
import java.util.Scanner;

public class DayName {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter weekday day number (1-7) : ");
        int weekday = scanner.nextInt();

        if(weekday == 1) {

            System.out.println("Monday");

        } else if(weekday == 2) {

            System.out.println("Tuesday");

        } else if(weekday == 3) {

            System.out.println("Wednesday");

        } else if(weekday == 4) {

            System.out.println("Thursday");

        } else if(weekday == 5) {

            System.out.println("Friday");

        } else if(weekday == 6) {

            System.out.println("Saturday");

        } else if(weekday == 7) {

            System.out.println("Sunday");

        } else {

            System.out.println("Please enter weekday number between 1-7.");
        }

    }
}
Try It

Output

Enter weekday day number (1-7) : 4
Thursday