Question

Complete the following program based on the comments inside. Important note: You are only allowed to use the new operator in solving this problem. (i.e. Don't use predefined array functions such as append(), concat(), etc. in solving this problem) Important Note 2: Your program should work the same if the sizes of first_array and second_array are changed. (i.e. make use of the .length variable to get the length of the arrays) void setup () { int [] first_array = {11, 12, 13, 14}; int [] second_array = {22, 33, 44}; int [] third_array; //Write code here so that the third array contains all //elements of the second array and first array, starting //with the elements of the first array. //So in this case, after your code runs, the third array //would contain: 11, 12, 13, 14, 22, 33, 44 }

Answer 1

import java.util.ArrayList;
import java.util.Scanner;

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public class MainClass {
  
public static void setup()
{
int[] first = {11,12,13,14};
int[] second = {22,33,44};
int len = first.length+second.length;
  
int[] third = new int[len];
  
int i = 0;
int k = 0;
  
while(i<first.length)
{
third[k] = first[i];
k++;
i++;
}
  
i = 0;
  
while(i<second.length)
{
third[k] = second[i];
k++;
i++;
}
  
System.out.print("Content of third array is : ");
  
for(i=0;i<third.length;i++)
System.out.print(third[i] + " ");
}
  
public static void main(String[] args) {
  
setup();
}
}

OUTPUT:

run: Content of third array is 11 12 13 14 22 33 44 BUILD SUCCESSFUL (total time: 1 second)