To implement Java program using Array.

Explanation

This Java program demonstrates how to copy elements from one array to another. In Java, arrays are objects. If you simply assign one array variable to another (e.g., arr2 = arr1), you are only copying the reference (memory address), meaning both variables would point to the same data. This program shows the correct way to perform a "manual copy" so that two distinct arrays exist in memory.

The logic follows these steps:

1. Initialization: An integer array named arr1 is created and populated with five values: 1, 2, 3, 4, and 5.
2. Displaying Original: The program iterates through arr1 using a for loop to print its contents to the console.
3. Memory Allocation: A second array, arr2, is declared. It is initialized using the new keyword with a size equal to arr1.length. This ensures arr2 has enough space to hold all elements from the first array.
4. The Copying Process: A for loop runs from index 0 to the end of the array. In each iteration, the value at arr1[i] is assigned to arr2[i].
5. Verification: Finally, the program iterates through arr2 and prints its contents to verify that the values were successfully transferred.

Algorithm

1. Start.
2. Initialize an integer array arr1 with a set of predefined values.
3. Display the elements of arr1 by iterating through it using a loop.
4. Declare a second integer array arr2.
5. Allocate memory for arr2 using the length of arr1 (new int[arr1.length]).
6. Loop through the indices of arr1 from $i = 0$ to $length - 1$:
   • Assign the value of arr1[i] to arr2[i].
7. Display the elements of arr2 to confirm the copy was successful.
8. Stop.