Question

Write array methods that carry out the following tasks for an array of integers by creating and completing the “ArrayMethods” class below. Add documentation comments for each method. Provide a test program called ‘Lab5_yourID.java” that test methods of ArrayMethods class. In your test program, use random class to generate array values.

public class ArrayMethods {

private int[ ] values; //declare instant variables

public ArrayMethods (int[ ] initialValues) {values = initialValues;} //constructor

public void shiftRight( ) { … }

public Boolean adjacentDuplicate( ) {…} }

Method shiftRight: that shifts all elements by one to the right and move the last element into the first position. For example, 1 4 9 16 25 would be transformed into 25 1 4 19 16.

Method adjacentDuplicate: returns true if the array has two adjacent duplicate elements.

Answer 1

Program Code Screenshot :

Sample Output

Program Code to Copy

import java.util.Arrays;

class ArrayMethods {

    private int[] values; //declare instant variables

    public ArrayMethods(int[] initialValues) {
        values = initialValues;
    }

    public void shiftRight() {
        int t = values[values.length-1];
        //Shift each element to right
        for(int i=values.length-1;i>=1;i--){
            values[i] = values[i-1];
        }
        //Shift last to first
        values[0] = t;
    }

    public Boolean adjacentDuplicate() {
        for(int i=1;i<values.length;i++){
            //Check adjacent elements
            if(values[i]==values[i-1]){
                return true;
            }
        }
        return false;
    }

    public String toString(){
        return Arrays.toString(values);
    }
}

class Lab5_yourID {
    public static void main(String[] args) {
        ArrayMethods am = new ArrayMethods(new int[]{1,4,9,16,25});
        System.out.println("Array is "+am);
        System.out.println("After shifting right");
        am.shiftRight();
        System.out.println(am);
        System.out.println("Adjacent duplicaets : "+am.adjacentDuplicate());
    }
}