JAVA-Daily-Tasks

Day 08 - Arrays Problem Solving

📌 Introduction

Day 08 of my Java Daily Tasks focuses on Arrays Problem Solving.

In Day 07, I learned the basic operations of arrays. In Day 08, I am applying arrays to solve more logical and problem-solving-based programs.

This day includes duplicate elements, missing numbers, frequency counting, second largest and smallest elements, removing duplicates, merging arrays, sorting, moving zeros, and finding common elements.

🎯 Objectives

The main objectives of Day 08 are:

Improve array problem-solving skills
Find duplicate elements
Find missing numbers
Count element frequency
Find the second largest element
Find the second smallest element
Remove duplicate elements
Merge two arrays
Sort an array
Move zeros to the end
Find common elements between two arrays
Improve logical thinking using arrays

📚 Topics Covered

Arrays
Array traversal
Nested loops
Duplicate detection
Missing number logic
Frequency counting
Second largest element
Second smallest element
Removing duplicates
Merging arrays
Bubble Sort
Moving zeros
Common elements
Linear searching

📁 Folder Structure

Day-08-Arrays-Problem-Solving/
│
├── Questions/
│   └── Questions.txt
│
├── Screenshots/
│   ├── Output_1.png
│   ├── Output_2.png
│   ├── Output_3.png
│   ├── Output_4.png
│   ├── Output_5.png
│   ├── Output_6.png
│   ├── Output_7.png
│   ├── Output_8.png
│   ├── Output_9.png
│   └── Output_10.png
│
├── Solutions/
│   ├── Q01_Find_Duplicate.java
│   ├── Q02_Find_Missing_Number.java
│   ├── Q03_Count_Frequency.java
│   ├── Q04_Second_Largest.java
│   ├── Q05_Second_Smallest.java
│   ├── Q06_Remove_Duplicates.java
│   ├── Q07_Merge_Arrays.java
│   ├── Q08_Sort_Array.java
│   ├── Q09_Move_Zeros.java
│   └── Q10_Common_Elements.java
│
└── README.md

📝 Practice Questions

Q01 - Find Duplicate

Find and print the duplicate elements present in an array.

Q02 - Find Missing Number

Find the missing number from an array containing numbers from 1 to n.

Q03 - Count Frequency

Count how many times each element occurs in an array.

Q04 - Find Second Largest

Find the second largest element in an array.

Q05 - Find Second Smallest

Find the second smallest element in an array.

Q06 - Remove Duplicates

Remove duplicate elements from an array and display only unique elements.

Q07 - Merge Two Arrays

Merge two arrays into a single array.

Q08 - Sort an Array

Sort the elements of an array in ascending order.

Q09 - Move Zeros

Move all zero elements to the end of the array while maintaining the order of non-zero elements.

Q10 - Find Common Elements

Find the elements that are common between two arrays.

💻 Solutions

No.	Problem	Solution
Q01	Find Duplicate	`Q01_Find_Duplicate.java`
Q02	Find Missing Number	`Q02_Find_Missing_Number.java`
Q03	Count Frequency	`Q03_Count_Frequency.java`
Q04	Second Largest	`Q04_Second_Largest.java`
Q05	Second Smallest	`Q05_Second_Smallest.java`
Q06	Remove Duplicates	`Q06_Remove_Duplicates.java`
Q07	Merge Arrays	`Q07_Merge_Arrays.java`
Q08	Sort Array	`Q08_Sort_Array.java`
Q09	Move Zeros	`Q09_Move_Zeros.java`
Q10	Common Elements	`Q10_Common_Elements.java`