Question

How to count array elements with values in a given range with Java

Answer 1

public class MyClass {
    public static int countValuesInRange(int arr[], int from, int to) {
        int count = 0;
        int size = arr.length;
        for (int i = 0; i < size; i++) {
            if (arr[i] >= from && arr[i] <= to)
                count++;
        }
        return count;
    }
    public static void main(String args[]) {
        int arr[] = { 3, 6, 0, 17, 9, 1, 8, 7, 4, 10, 18, 11, 20, 30 };
        int from = 5, to = 12;
     
        System.out.println(countValuesInRange(arr, from, to));
    }
}

   
   
   
      
/*
run:
      
6
      
*/

 

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