Java > 🧑💻 Exercise 1
Problem 1: Arithmetic Operations
Description:
Write a Java program that performs basic arithmetic operations on two given numbers.
Demonstrate the program by changing input values
Example:
Input: Declare two variables a and b of integer type and with values 15 and 5 Output: Sum: 20, Difference: 10, Product: 75, Quotient: 3, Remainder: 0
Problem 2: Area of a Rectangle
Description:
Write a Java program to calculate the area of a rectangle given its length and width.
Demonstrate the program by changing input values
Example:
Input: Declare two variables length and width with values 20 and 10 Output: Area is 200
Problem 3: Fahrenheit to Celsius Conversion
Description:
Write a Java program to convert a given temperature from Fahrenheit to Celsius.
Demonstrate the program by changing input values
Formula:
- Celsius = (Fahrenheit - 32) * 5/9
Example:
Input: Declare variable fahrenheit of double datatype and value 98.6 Output: Celsius = 37.0
Problem 4: Convert Minutes to Hours and Minutes
Description: Write a Java program to convert a given number of minutes into hours and remaining minutes. Demonstrate the program by changing input values
Example:
Input: Declare a variable duration (integer) with value 125 Output: Total Time = 2 hours and 5 minutes
Problem 5: Even or Odd Checker
Description:
Write a Java program to check if a given number is even or odd using terinary operator
Demonstrate the program with different values
Example:
Input: Declare a integer variable with value 29 Output: 29 is odd number
Problem 6: Character ASCII Value
Description:
Write a Java program to find the ASCII value of a given character.
Demonstrate the program with different values
Example:
Input: Declare a variable of character datatype with value 'A' Output: ASCII value of A is 65
Problem 7: Boolean Expressions
Description:
Write a Java program to evaluate simple boolean expressions.
Demonstrate the program with different combinations
Example:
Input: Declare two variables a and b of boolean datatypes with values true and false Output: AND: false, OR: true, NAND: true, NOR: false
Problem 8: Swapping Values
Description: Write a Java program to swap the values of two variables. Demonstrate the program by changing input values
Example:
Input: Declare two variables x and y of integer type and with values 15 and 5 Output:
Before Swap: x = 5 and y = 15
After Swap: x = 15 and y = 5
Problem 9: Perimeter of a Circle
Description:
Write a Java program to calculate the perimeter of a circle given its radius.
Demonstrate the program by changing input values
Example:
Input: Declare a variable radius with double datatype with value 7.0 Output: Perimeter: 43.98
Problem 10: Simple Interest Calculation
Description:
Write a Java program to calculate simple interest.
Demonstrate the program by changing input values
Formula:
- Simple Interest = (Principal * Rate * Time) / 100
Example:
Input: principal = 1000, rate = 5, time = 2 Output: Simple Interest: 100.0
Problem 11: Check Positive or Negative Number
Description:
Write a Java program to check whether input number is positive, negative, or zero.
Demonstrate the program by changing input values
Example:
| Input | Output |
|---|---|
| -20 | Negative |
| 0 | Zero |
| 30 | Positive |
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