Notes

Problem Statement
You are tasked with writing a program that processes an array of integers. The
program should allow the user to:
Task 1 (20 Marks): Input the Array
• Write a method inputArray(int n) that prompts the user to enter n integers
and stores them in an array.
Task 2 (20 Marks): Display the Array
• Implement a method displayArray(int[] array) to print all elements of
the array.
Task 3 (20 Marks): Find the Second Largest Element
• Write a method findSecondLargest(int[] array) that finds and returns
the second largest element in the array.
• Note: You are allowed to use built-in sort methods like Arrays.sort().
Task 4 (20 Marks): Count Even and Odd Numbers
• Implement a method countEvenOdd(int[] array) that counts how many
even and odd numbers are in the array and displays the counts.
Task 5 (20 Marks): Binary Search
• Write a method binarySearch(int[] array, int target) to search for a
given target number in the array.
• Note: The array must be sorted in ascending order first before applying binary
search. If the number is found, return its index; if not, return -1.
1
Sample Output
number_of_elements: 6
elements:
- 15
- 8
- 23
- 4
- 42
- 9
all_elements: [15, 8, 23, 4, 42, 9]
second_largest_element: 23
even_numbers_count: 2
odd_numbers_count: 4
search_number: 42
search_result: "42 found at index 4."