Java Program to Display Prime Numbers Between Intervals Using Function

A Java program to display prime numbers between two intervals using a user-defined function.

Problem Description

Write a Java program to display all prime numbers between two given intervals using a function.

Code

PrimeIntervals.java

public class PrimeIntervals {
    public static void main(String[] args) {
        int low = 20, high = 50;

        while (low < high) {
            if(checkPrime(low))
                System.out.print(low + " ");

            ++low;
        }
    }

    public static boolean checkPrime(int num) {
        boolean flag = true;

        for(int i = 2; i <= num/2; ++i) {
            if(num % i == 0) {
                flag = false;
                break;
            }
        }

        return flag;
    }
}

Output

23 29 31 37 41 43 47

Explanation

checkPrime(): A separate method to check if a number is prime.
Loop: Iterates from low to high and calls checkPrime for each number.

Java Program to Display Prime Numbers Between Intervals Using Function

Problem Description

Code

Output

Explanation

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