Question

(java) Part 1 Write a method named compare that accepts two String arrays as parameters and returns a boolean. The method should return true if both arrays contain the same values (case sensitive), otherwise returns false. Note - the two arrays must be the same length and the values must be in the same order to return true.

Part  2 Write a method named generateArray that accepts an int size as its parameter and returns an int[] array where each element is populated incrementally beginning at 1 and ending at the size (inclusive). Example: if the parameter was 5, your method should return an int[] array containing values: {1,2,3,4,5}. Example 2: if the parameter was 9 your method should return an int[] array containing values: {1,2,3,4,5,6,7,8,9}. Hint - try to populate the array with 0 - size-1 first and then adjust :) *You may assume they will enter a positive number.

Main.java exists to test your code - write the methods described below in Assignment10.

public class Main
{
public static void main(String[] args) {

//You can test your code here.

//Sample testing code:

Assignment10 q = new Assignment10(); //creates an object of your class



/* //TEST PROBLEM 1 - Uncomment to use


  
String[] a = {"dog", "cat"};
String[] b = {"dog", "cat", "banana"};
  
System.out.println(q.compare(a,b)); //should print false - a & b do not contain same elements and are not the same length
  

*/


//Change values around to ensure your code works properly
  
  
/* //TEST PROBLEM 2 - Uncomment to use
  
  
//Continues using object q created in line 9. ***Testing code requires your additions.
  
int size = 3; //change number to thoroughly test.
  
int[] returnedArray = q.generateArray(size); //returns an array - stored in an array.
  
//TODO: write a simple for loop to print out each element of the array to test
  
//YOUR CODE HERE TO FINISH TESTING (TODO instructions above!).
  
//Note: System.out.println(returnedArray); should not be used - prints a memory address - why?


*/




   }
}

Answer 1

Code

import java.util.*;

  class Assignment10
 {
   public boolean compare(String a[],String b[])
   {
     if(a.length!=b.length) //if different length return false
     {
       return false;
     }
     for(int i=0;i<a.length;i++)
     {
       if(!a[i].equals(b[i])) //if any element mismatched return false
         return false;
     }
     return true; //return true if all equals
   }
   public int[] generateArray(int n)
   {
     int a[]=new int[n];
     for(int i=0;i<n;i++)
     {
       a[i]=i+1; //store in the array
     }
     return a;
   }
 }

 public class Main
 {
   public static void main(String args[])
   { 
     Assignment10 q = new Assignment10();
     String[] a = {"dog", "cat"};
     String[] b = {"dog", "cat", "banana"};
     System.out.println(q.compare(a,b));
     int size = 3; 
     int[] returnedArray = q.generateArray(size);
     for(int i=0;i<size;i++)
     {
       System.out.print(returnedArray[i]+" ");
     }
   }
 }

Terminal Work

.