Question

In Java Please:

* posOfLargestElementLtOeT returns the position of the largest element in the array that is

* less than or equal to the limit parameter

* if all values are greater than theVal, return -1;

*

* Precondition: the array is nonempty and all elements are unique.

* Your solution must go through the array exactly once.

*

* <pre>

* 0 == posOfLargestElementLtOeT(3, new double[] { -7 }) // value:-7 is in pos 0

* 5 == posOfLargestElementLtOeT(3, new double[] { 11, -4, -7, 7, 8, 1 }), // value:1 is in pos 5

* -1 == posOfLargestElementLtOeT(-7, new double[] { 1, -4, -5, 7, 8, 11 }), // all elements are > -7

*

* The code below is a stub version, you should replace the line of code

* labeled TODO with code that achieves the above specification

* </pre>

*/

public static int posOfLargestElementLtOeT( double limit, double[] list)

// Solve here

Answer 1

public class PosLargest {

    /**
     * posOfLargestElementLtOeT returns the position of the largest element in the array that is
     * <p>
     * less than or equal to the limit parameter
     * <p>
     * if all values are greater than theVal, return -1;
     * <p>
     * <p>
     * <p>
     * Precondition: the array is nonempty and all elements are unique.
     * <p>
     * Your solution must go through the array exactly once.
     *
     *
     *
     * <pre>
     *
     * 0 == posOfLargestElementLtOeT(3, new double[] { -7 }) // value:-7 is in pos 0
     *
     * 5 == posOfLargestElementLtOeT(3, new double[] { 11, -4, -7, 7, 8, 1 }), // value:1 is in pos 5
     *
     * -1 == posOfLargestElementLtOeT(-7, new double[] { 1, -4, -5, 7, 8, 11 }), // all elements are > -7
     *
     *
     *
     * The code below is a stub version, you should replace the line of code
     *
     * labeled TODO with code that achieves the above specification
     *
     * </pre>
     */
    public static int posOfLargestElementLtOeT(double limit, double[] list) {
        int maxIndex = -1;
        for (int i = 0; i < list.length; i++) {
            if (list[i] <= limit) {
                if (maxIndex == -1 || list[i] > list[maxIndex]) {
                    maxIndex = i;
                }
            }
        }
        return maxIndex;
    }

    public static void main(String[] args) {
        System.out.println(posOfLargestElementLtOeT(3, new double[]{-7}));
        System.out.println(posOfLargestElementLtOeT(3, new double[]{11, -4, -7, 7, 8, 1}));
        System.out.println(posOfLargestElementLtOeT(-7, new double[]{1, -4, -5, 7, 8, 11}));
    }
}