Question

Download the AddValueNewArray.java file, and open it in jGrasp (or a text editor of your choice). This program behaves similarly to the AddValueToArray program from before. However, instead of modifying the array in-place, it will return a new array holding the modification. The original array does not change. For simplicity, the array used is “hard-coded” in main, though the method you write should work with any array. Example output with the command-line argument 3 is shown below:

Original array:
3
8
6
4
New array:
6
11
9
7

Note that the output shows the original, unchanged array, along with the new array.

public class AddValueNewArray {
    // You must define the addValueNew method, which behaves
    // similarly to the addValueTo method in AddValueToArray.java.
    // However, instead of adding the given value to the given
    // array, it will return a _new_ array, where the new array
    // is the result of adding the value to each element of the
    // given array. To be clear, the given array NEVER CHANGES.
    //
    // TODO - define your code below this comment
    //

    // DO NOT MODIFY printArray!
    public static void printArray(int[] array) {
        for (int index = 0; index < array.length; index++) {
            System.out.println(array[index]);
        }
    }
    
    public static void main(String[] args) {
        int[] array = new int[]{3, 8, 6, 4};
        int valueToAdd = Integer.parseInt(args[0]);
        int[] newArray = addValueNew(valueToAdd, array);
        System.out.println("Original array:");
        printArray(array);
        System.out.println("New array:");
        printArray(newArray);
    }
}

Answer 1

public class AddValueNewArray {
    // You must define the addValueNew method, which behaves
    // similarly to the addValueTo method in AddValueToArray.java.
    // However, instead of adding the given value to the given
    // array, it will return a _new_ array, where the new array
    // is the result of adding the value to each element of the
    // given array. To be clear, the given array NEVER CHANGES.
    //
    private static int[] addValueNew(int valueToAdd, int[] array) {
        int result[] = new int[array.length];
        for(int i = 0;i<array.length;i++){
            result[i] = array[i] + valueToAdd;
        }
        return result;
    }

    // DO NOT MODIFY printArray!
    public static void printArray(int[] array) {
        for (int index = 0; index < array.length; index++) {
            System.out.println(array[index]);
        }
    }

    public static void main(String[] args) {
        int[] array = new int[]{3, 8, 6, 4};
        int valueToAdd = Integer.parseInt(args[0]);
        int[] newArray = addValueNew(valueToAdd, array);
        System.out.println("Original array:");
        printArray(array);
        System.out.println("New array:");
        printArray(newArray);
    }
}