Lab Sheets 5 & 6: Java Control Statements

Part 1: Sequential Flow (Sequence Logic)

1. Write a Java program that takes two numbers as input and prints their sum, difference, product, and quotient in sequence.

Part 2: Conditional Statements (Selection Logic)

2. If-Else Statement:

   • Write a program that checks if a given number is even or odd.

   • Write a program that determines the largest among three numbers.

3. Switch Statement:

   • Write a program that takes a day number (1-7) and prints the corresponding day name (e.g., 1 → "Monday").

Part 3: Loops (Iteration Logic)

4. For Loop:

   • Write a program to print the first 10 natural numbers.

   • Write a program to calculate the factorial of a number.

5. While Loop:

   • Write a program to print all even numbers between 1 and 20.

   • Write a program to find the sum of digits of a given number.

6. Do-While Loop:

   • Write a program that keeps asking the user to enter a number until they enter a negative number.

   • Write a program to print the multiplication table of a number using do-while.

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Challenge Problems

7. Nested Control Structures:

   • Write a program to check if a number is prime or not.

   • Write a program to print the Fibonacci series up to 'n' terms.

8. Pattern Printing:

   • Use nested loops to print the following patterns:

       *
       **
       ***
       ****
       *****
     

       1
       12
       123
       1234
       12345