;

# Java Program to Display Prime Numbers Between Intervals Using Function

###### Tutorialsrack 10/07/2021 Java

In this java program, you’ll learn how to display the prime numbers between two intervals such as 1 to 100 or 1 to nth using a function. In this program, we used the following java basics such as `for` loop, `while` loop, and `if..else` condition.

Here is the program to display the prime number between two intervals using a function.

##### Program - Java Program to Display Prime Numbers Between Intervals Using Function
``````//Java Program to Display Armstrong Numbers Between Intervals Using Function

import java.util.Scanner;

public class JavaPrograms {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

System.out.println("Enter a Start Number: ");
int low = sc.nextInt();

System.out.println("Enter an End Number: ");
int high = sc.nextInt();

System.out.println("All Armstrong Number Between Interval of " + low + " to " + high + " are:");

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

++low;
}
}

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

for (int i = 2; i <= num / 2; ++i) {

if (num % i == 0) {
flag = false;
break;
}
}

return flag;
}
}
``````
##### Output

Enter a Start Number:

1

Enter an End Number:

100

All Armstrong Number Between Intervals of 1 to 100 are:

1 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97