Answer to Question #289020 in Java | JSP | JSF for Hamza

Question

Task #3: Arrays and Methods

In this task, you are being asked to write a method that manipulates arrays in Java.

Write a method called printCommon that accepts two integer arrays as arguments and

print all the common elements from the two arrays.

You may use the following header for this method:

static void printCommon(int[] firstArray, int[]

secondArray)

For example, if the elements of two arrays are {4, 2, 3, 17, 19, 12, 16, 7, 100}

and {3, 9, 5, 12, 6, 17, 8, 7}, then the method should print {3, 17, 12, 7}.

NOTE:

● Declare and initialize both arrays without taking input from user.

● Both arrays do not need to be of the same size.

1. Create a program called ArrayPrintCommonLab2.java

2. Correctly display appropriate messages.

Answer 1

class Main {
    public static void main(String[] args) {
        int[] arr1 = {4, 2, 3, 17, 19, 12, 16, 7, 100};
        int[] arr2 = {3, 9, 5, 12, 6, 17, 8, 7};
        printCommon(arr1, arr2);
    }
    
    private static void printCommon(int[] firstArray, int[] secondArray) {
        for (int i : firstArray) {
            for (int j : secondArray) {
                if (i == j) {
                    System.out.print(i + " ");
                }
            }
        }
    }
}