JAVA-Daily-Tasks

📘 Day 02 - Conditional Statements

This folder contains my Day 02 Java practice tasks focused on conditional statements and decision-making.

The goal of this day is to understand how Java makes decisions based on different conditions and apply those concepts to simple programming and real-world problems.

📚 Topics Covered

if statement
if-else statement
else-if statement
Comparison operators
Logical operators
Modulus operator %
User input using Scanner
Decision-making in Java
Real-world conditional problems

📁 Folder Structure

Day-02-Conditional-Statements/
│
├── README.md
│
├── Questions/
│   └── Questions.txt
│
├── Solutions/
│   ├── Q01_Positive_or_Negative.java
│   ├── Q02_Odd_or_Even.java
│   ├── Q03_Largest_of_Two.java
│   ├── Q04_Smallest_of_Two.java
│   ├── Q05_Largest_of_Three.java
│   ├── Q06_Leap_Year.java
│   ├── Q07_Student_Grade.java
│   ├── Q08_Electricity_Bill.java
│   ├── Q09_Discount_Calculation.java
│   └── Q10_Loan_Eligibility.java
│
└── 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

📝 Practice Questions

No.	Problem	Main Concept
Q01	Positive or Negative	`if-else`
Q02	Odd or Even	Modulus `%`
Q03	Largest of Two Numbers	`if-else`
Q04	Smallest of Two Numbers	`if-else`
Q05	Largest of Three Numbers	`else-if`
Q06	Leap Year	Conditions + `%`
Q07	Student Grade	`else-if`
Q08	Electricity Bill	Real-world conditions
Q09	Discount Calculation	Conditions + percentage
Q10	Loan Eligibility	Logical `&&`

💻 Solutions

Q01 - Positive or Negative

Checks whether a given number is positive, negative, or zero.

Concepts used:

if-else
Comparison operators
Scanner

Q02 - Odd or Even

Checks whether a number is odd or even using the modulus operator.

Concepts used:

Modulus %
if-else
User input

Q03 - Largest of Two Numbers

Finds the largest value between two numbers.

Concepts used:

if-else
Comparison operators

Q04 - Smallest of Two Numbers

Finds the smallest value between two numbers.

Concepts used:

if-else
Comparison operators

Q05 - Largest of Three Numbers

Finds the largest value among three numbers.

Concepts used:

if
else-if
else
Comparison operators

Q06 - Leap Year

Checks whether a given year is a leap year.

Concepts used:

Conditional statements
Logical operators
Modulus %

Q07 - Student Grade

Calculates a student’s grade based on their marks.

Concepts used:

else-if
Comparison operators
Multiple conditions

Q08 - Electricity Bill

Calculates an electricity bill based on the number of units consumed and adds a surcharge.

Concepts used:

Conditional statements
Multiple conditions
Arithmetic operators
Real-world problem solving

Q09 - Discount Calculation

Calculates the discount amount and final purchase amount based on the purchase value.

Concepts used:

Conditional statements
Percentage calculation
Arithmetic operators

Q10 - Loan Eligibility

Checks whether a person is eligible for a loan based on their age and monthly salary.

Concepts used:

Logical && operator
Comparison operators
if-else

🖥️ Output Screenshots

Q01 - Positive or Negative

Q01 Output

Q02 - Odd or Even

Q02 Output

Q03 - Largest of Two Numbers

Q03 Output

Q04 - Smallest of Two Numbers

Q04 Output

Q05 - Largest of Three Numbers

Q05 Output

Q06 - Leap Year

Q06 Output

Q07 - Student Grade

Q07 Output

Q08 - Electricity Bill

Q08 Output

Q09 - Discount Calculation

Q09 Output

Q10 - Loan Eligibility

Q10 Output

🛠️ Technologies Used

☕ Java
💻 VS Code
🔧 JDK
🌿 Git
🐙 GitHub

▶️ How to Run

Step 1 - Open the Solutions Folder

Open the terminal inside the Solutions folder.

cd Solutions

Step 2 - Compile a Java Program

For example:

javac Q01_Positive_or_Negative.java

Step 3 - Run the Program

java Q01_Positive_or_Negative

You can follow the same process for the remaining programs.

▶️ Compile All Programs

To compile all Java files inside the Solutions folder:

javac *.java

Then run any program individually:

java Q01_Positive_or_Negative

java Q02_Odd_or_Even

java Q03_Largest_of_Two

📸 Screenshots

The Screenshots folder contains the output screenshots for all 10 Java programs.

Each screenshot is linked to its corresponding practice question above to make it easy to understand the program execution and output.

🧠 What I Learned

Through Day 02, I practiced:

Making decisions using if
Handling alternative conditions using if-else
Checking multiple conditions using else-if
Comparing values
Using logical operators
Using the modulus operator %
Taking user input using Scanner
Applying arithmetic operations
Solving simple real-world programming problems
Improving logical thinking through Java conditions

🎯 Learning Goal

The main goal of Day 02 is to build a strong foundation in conditional statements and decision-making in Java.

These concepts are important for solving programming problems and will be used in upcoming Java topics.

📈 Progress

Day	Topic	Status
Day 02	Conditional Statements	✅ Completed

Learning Java step by step by practicing small problems every day.

👨‍💻 Author

M. Praveen Kumar

GitHub: PraveenKumar7545
Repository: JAVA-Daily-Tasks

⭐ This folder is part of my Java Daily Tasks journey to improve my Java programming and problem-solving skills.