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Java Exercises: Find the number of values in a given range divisible by a given value

Java Basic: Exercise-56 with Solution

Write a Java program to find the number of values in a given range divisible by a given value.
Sample Data:
For example x = 5, y=20 and p =3, find the number of integers within the range x..y and that are divisible by p i.e. { i :x ≤ i ≤ y, i mod p = 0 }

Sample Solution:

Java Code:

import java.util.*;
 public class Exercise56 {
     public static void main(String[] args){
		int x = 5;
		int y = 20;
		int p = 3;
		System.out.println(result(x,y,p));
	 } 		
	public static int result(int x, int y, int p) {	
		if (x%p == 0)
			return( y/p - x/p + 1);
		return(y/p - x/p);
	}
 }

Sample Output:

5

Pictorial Presentation:

Pictorial Presentation: Java exercises: Find the number of values in a given range divisible by a given value.

Flowchart:

Flowchart: Java exercises: Find the number of values in a given range divisible by a given value.

Java Code Editor:

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Java: Tips of the Day

countOccurrences

Counts the occurrences of a value in an array.

Use Arrays.stream().filter().count() to count total number of values that equals the specified value.

public static long countOccurrences(int[] numbers, int value) {
    return Arrays.stream(numbers)
            .filter(number -> number == value)
            .count();
}

Ref: https://bit.ly/3kCAgLb