Java > 🧑💻 Conditional Statements Exercise
Problem 1: Simple If Condition
Description:
Write a Java program that checks if a number is positive using a simple if statement.
Example:
Input: Enter an integer number from the user Output: 10 is a positive number
Problem 2: If-Else Condition
Description:
Write a Java program to check if a given number is even or odd using an if-else statement.
Example:
Input: Declare an integer variable num with value 25 Output: 25 is an odd number
Problem 3: If-Else Ladder Condition
Description:
Write a Java program that determines the grade of a student based on their marks using an if-else ladder.
Example:
Input: Take marks input from the user Output: Grade: A
Problem 4: Nested If-Else Condition
Description:
Write a Java program to find the largest among three numbers using nested if-else.
Example:
Input: Declare three integer variables a = 12, b = 25, c = 7 Output: Largest number: 25
Problem 5: Switch-Case Statement
Description:
Write a Java program that takes a number (1-7) and prints the corresponding day of the week using switch-case.
Example:
Input: Declare an integer variable day with value 3 Output: Wednesday
Problem 6: Voting Eligibility Checker
Description:
Write a Java program to check if a person is eligible to vote (age >= 18) using an if-else statement.
Example:
Input: Take age input from the user Output: Eligible to vote
Problem 7: Traffic Light Simulator
Description:
Write a Java program that simulates traffic light behavior using switch-case. The user inputs a color (red, yellow, green) and the program prints the corresponding action.
Example:
Input: Take traffic light color input from the user Output: Stop
Problem 8: Leap Year Checker
Description:
Write a Java program that determines whether a given year is a leap year using an if-else statement.
Example:
Input: Take year input from the user Output: 2024 is a leap year
Problem 9: Discount Calculation
Description: Write a Java program that calculates a discount based on a purchase amount. If the amount is above 500, apply a 10% discount; otherwise, no discount.
Example:
Input: Declare a double variable amount with value 600 Output: Discounted Price: 540
Problem 10: Temperature Converter
Description:
Write a Java program that categorizes a temperature value as “Cold”, “Moderate”, or “Hot” based on its value using an if-else ladder.
Example:
Input: Declare a double variable temperature with value 35.0 Output: Hot