Coding Practice

List of Java Programming - Practice

List of if...else programming exercises
A.

1. Write a Java program to find maximum between two numbers

2. Write a Java program to find maximum between three numbers

3. Write a Java program to check whether a number is negative, positive or zero

4. Write a Java program to check whether a number is divisible by 5 and 11 or not

5. Write a Java program to check whether a number is even or odd

6. Write a Java program to check whether a year is leap year or not

7. Write a Java program to check whether a character is alphabet or not

8. Write a Java program to input any alphabet and check whether it is vowel or consonant

9. Write a Java program to input any character and check whether it is alphabet, digit or special characters

10. Write Java program to check whether a character is uppercase or lowercase alphabet

11. Write a Java program to input week number and print week day

12. Write a Java program to input month number and print number of days in that month

13. Write a Java program to count total number of notes in given amount

14. Write a Java program to input angles of a triangle and check whether triangle is valid or not

15. Write a Java program to input all sides of a triangle and check whether triangle is valid or not

16. Write a Java program to check whether the triangle is equilateral, isosceles or scalene triangle

17. Write a Java program to find all roots of a quadratic equation

18. Write a Java program to calculate profit or loss

19. Write a Java program to input marks of five subjects Physics, Chemistry, Biology, Mathematics and Computer. Calculate percentage and grade according to following:

                Percentage >= 90% : Grade A
                Percentage >= 80% : Grade B
                Percentage >= 70% : Grade C
                Percentage >= 60% : Grade D
                Percentage >= 40% : Grade E
                Percentage < 40% : Grade F

20. Write a Java program to input basic salary of an employee and calculate its Gross salary according              to following:

                Basic Salary <= 10000 : HRA = 20%, DA = 80%
                Basic Salary <= 20000 : HRA = 25%, DA = 90%
                Basic Salary > 20000 : HRA = 30%, DA = 95%

21. Write a Java program to input electricity unit charges and calculate total electricity bill according to            the given condition:

                For first 50 units Rs. 0.50/unit
                For next 100 units Rs. 0.75/unit
                For next 100 units Rs. 1.20/unit
                For unit above 250 Rs. 1.50/unit
                An additional surcharge of 20% is added to the bill

List of loop programming exercises

1. Write a Java program to print all natural numbers from 1 to n. - using while loop

2. Write a Java program to print all natural numbers in reverse (from n to 1). - Using while loop

3. Write a Java program to print all alphabets from a to z. - using while loop

4. Write a Java program to print all even numbers from 1 to 100. - Using while loop

5. Write a Java program to print all odd number from 1 to 100

6. Write a Java program to find sum of all natural numbers between 1 to n

7. Write a Java program to find sum of all even numbers between 1 to n

8. Write a Java program to find sum of all odd numbers between 1 to n

9. Write a Java program to print multiplication table of any number

10. Write a Java program to count number of digits in a number

11. Write a Java program to find first and last digit of a number

12. Write a Java program to find sum of first and last digit of a number

13. Write a Java program to swap first and last digits of a number

14. Write a Java program to calculate sum of digits of a number

15. Write a Java program to calculate product of digits of a number

16. Write a Java program to enter a number and print its reverse

17. Write a Java program to check whether a number is palindrome or not

18. Write a Java program to find frequency of each digit in a given integer

18. Write a Java program to find frequency of each digit in a given integer-2

19. Write a Java program to enter a number and print it in words

20. Write a Java program to print all ASCII character with their values

21. Write a Java program to find power of a number using for loop

22. Write a Java program to find all factors of a number

23. Write a Java program to calculate factorial of a number

24. Write a Java program to find HCF (GCD) of two numbers

25. Write a Java program to find LCM of two numbers

26. Write a Java program to check whether a number is Prime number or not

27. Write a Java program to print all Prime numbers between 1 to n

28. Write a Java program to find sum of all prime numbers between 1 to n

29. Write a Java program to find all prime factors of a number

30. Write a Java program to check whether a number is Armstrong number or not

31. Write a C program to print all Armstrong numbers between 1 to n

32. Write a Java program to check whether a number is Perfect number or not

33. Write a Java program to print all Perfect numbers between 1 to n

34. Write a C program to check whether a number is Strong number or not.

Write a C program to print all Strong numbers between 1 to n.
Write a C program to print Fibonacci series up to n terms.
Write a C program to find one's complement of a binary number.
Write a C program to find two's complement of a binary number.
Write a C program to convert Binary to Octal number system.
Write a C program to convert Binary to Decimal number system.
Write a C program to convert Binary to Hexadecimal number system.
Write a C program to convert Octal to Binary number system.
Write a C program to convert Octal to Decimal number system.
Write a C program to convert Octal to Hexadecimal number system.
Write a C program to convert Decimal to Binary number system.
Write a C program to convert Decimal to Octal number system.
Write a C program to convert Decimal to Hexadecimal number system.
Write a C program to convert Hexadecimal to Binary number system.
Write a C program to convert Hexadecimal to Octal number system.
Write a C program to convert Hexadecimal to Decimal number system.
Write a C program to print Pascal triangle up to n rows.
Star pattern programs - Write a C program to print the given star patterns.
Number pattern programs - Write a C program to print the given number patterns.

Pattern Problem (Nested Loop)

Title: Star patterns in C programming
https://codeforwin.org/2015/07/star-patterns-program-in-c.html
Title: C Programming Code To Create Pyramid and Pattern
https://www.programiz.com/c-programming/examples/pyramid-pattern

List of array programming exercises

  1. Write a C program to read and print elements of array. 
  2. Write a C program to print all negative elements in an array.
  3. Write a C program to find sum of all array elements. 
  4. Write a C program to find maximum and minimum element in an array.
  5. Write a C program to find second largest element in an array.
  6. Write a C program to count total number of even and odd elements in an array.
  7. Write a C program to count total number of negative elements in an array.
  8. Write a C program to copy all elements from an array to another array.
  9. Write a C program to insert an element in an array.
  10. Write a C program to delete an element from an array at specified position.
  11. Write a C program to count frequency of each element in an array.
  12. Write a C program to print all unique elements in the array.
  13. Write a C program to count total number of duplicate elements in an array.
  14. Write a C program to delete all duplicate elements from an array.
  15. Write a C program to merge two array to third array.
  16. Write a C program to find reverse of an array.
  17. Write a C program to put even and odd elements of array in two separate array.
  18. Write a C program to search an element in an array.
  19. Write a C program to sort array elements in ascending or descending order.
  20. Write a C program to sort even and odd elements of array separately.
  21. Write a C program to left rotate an array.
  22. Write a C program to right rotate an array.

Two Dimensional Array Practice problems

C language Two Dimensional (Matrix) solved programs/examples

List of string programming exercises

  1. Write a C program to find length of a string.
  2. Write a C program to copy one string to another string.
  3. Write a C program to concatenate two strings.
  4. Write a C program to compare two strings.
  5. Write a C program to convert lowercase string to uppercase.
  6. Write a C program to convert uppercase string to lowercase.
  7. Write a C program to toggle case of each character of a string.
  8. Write a C program to find total number of alphabets, digits or special character in a string.
  9. Write a C program to count total number of vowels and consonants in a string.
  10. Write a C program to count total number of words in a string.
  11. Write a C program to find reverse of a string.
  12. Write a C program to check whether a string is palindrome or not.
  13. Write a C program to reverse order of words in a given string.
  14. Write a C program to find first occurrence of a character in a given string.
  15. Write a C program to find last occurrence of a character in a given string.
  16. Write a C program to search all occurrences of a character in given string.
  17. Write a C program to count occurrences of a character in given string.
  18. Write a C program to find highest frequency character in a string.
  19. Write a C program to find lowest frequency character in a string.
  20. Write a C program to count frequency of each character in a string.
  21. Write a C program to remove first occurrence of a character from string.
  22. Write a C program to remove last occurrence of a character from string.
  23. Write a C program to remove all occurrences of a character from string.
  24. Write a C program to remove all repeated characters from a given string.
  25. Write a C program to replace first occurrence of a character with another in a string.
  26. Write a C program to replace last occurrence of a character with another in a string.
  27. Write a C program to replace all occurrences of a character with another in a string.
  28. Write a C program to find first occurrence of a word in a given string.
  29. Write a C program to find last occurrence of a word in a given string.
  30. Write a C program to search all occurrences of a word in given string.
  31. Write a C program to count occurrences of a word in a given string.
  32. Write a C program to remove first occurrence of a word from string.
  33. Write a C program to remove last occurrence of a word in given string.
  34. Write a C program to remove all occurrence of a word in given string. 
  35. Write a C program to trim leading white space characters from given string.
  36. Write a C program to trim trailing white space characters from given string.
  37. Write a C program to trim both leading and trailing white space characters from given string.
  38. Write a C program to remove all extra blank spaces from given string.

List of function and recursion programming exercises

  1. Write a C program to find cube of any number using function.
  2. Write a C program to find diameter, circumference and area of circle using functions.
  3. Write a C program to find maximum and minimum between two numbers using functions.
  4. Write a C program to check whether a number is even or odd using functions.
  5. Write a C program to check whether a number is prime, Armstrong or perfect number using functions.
  6. Write a C program to find all prime numbers between given interval using functions.
  7. Write a C program to print all strong numbers between given interval using functions.
  8. Write a C program to print all Armstrong numbers between given interval using functions.
  9. Write a C program to print all perfect numbers between given interval using functions.
  10. Write a C program to find power of any number using recursion.
  11. Write a C program to print all natural numbers between 1 to n using recursion.
  12. Write a C program to print all even or odd numbers in given range using recursion.
  13. Write a C program to find sum of all natural numbers between 1 to n using recursion.
  14. Write a C program to find sum of all even or odd numbers in given range using recursion.
  15. Write a C program to find reverse of any number using recursion.
  16. Write a C program to check whether a number is palindrome or not using recursion.
  17. Write a C program to find sum of digits of a given number using recursion.
  18. Write a C program to find factorial of any number using recursion.
  19. Write a C program to generate nth Fibonacci term using recursion.
  20. Write a C program to find GCD (HCF) of two numbers using recursion.
  21. Write a C program to find LCM of two numbers using recursion.
  22. Write a C program to display all array elements using recursion.
  23. Write a C program to find sum of elements of array using recursion.
  24. Write a C program to find maximum and minimum elements in array using recursion.

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