Swift Programming Exercises, Practice, Solution: Basic

Swift Basic Programming [28 exercises with solution]

[An editor is available at the bottom of the page to write and execute the scripts. Go to the editor]

1. Write a Swift program to compute the sum of the two integers. If the values are equal return the triple their sum.
Click me to see the solution

2. Write a Swift program to compute and return the absolute difference of n and 51, if n is over 51 return double the absolute difference
Click me to see the solution

3. Write a Swift program that accept two integer values and return true if one of them is 20 or if their sum is 20.
Click me to see the solution

4. Write a Swift program to accept two integer values and return true if one is negative and one is positive. Return true only if both are negative.
Click me to see the solution

5. Write a Swift program to add "Is" to the front of a given string. However, if the string already begins with "Is", return the given string.
Click me to see the solution

6. Write a Swift program to remove a character at specified index of a given non-empty string. The value of the specified index will be in the range 0..str.length()-1 inclusive.
Click me to see the solution

7. Write a Swift program to change the first and last character of a given string.
Click me to see the solution

8. Write a Swift program to add the last character (given string) at the front and back of a given string. The length of the given string must be 1 or more.
Click me to see the solution

9. Write a Swift program to check if a given non-negative number is a multiple of 3 or a multiple of 5.
Click me to see the solution

10. Write a Swift program to take the first two characters from a given string and create a new string with the two characters added at both the front and back.
Click me to see the solution

11. Write a Swift program to test a given string whether it starts with "Is". Return true or false.
Click me to see the solution

12. Write a Swift program that return true if either of two given integers is in the range 10..30 inclusive.
Click me to see the solution

13. Write a Swift program to check if a given string begins with "fix", except the 'f' can be any character or number.
Click me to see the solution

14. Write a Swift program to find the largest number among three given integers.
Click me to see the solution

15. Write a Swift program that accept two integer values and to test which value is nearest to the value 10, or return 0 if both integers have same distance from 10.
Click me to see the solution

16. Write a Swift program that accept two integer values and test if they are both in the range 20..30 inclusive, or they are both in the range 30..40 inclusive.
Click me to see the solution

17. Write a Swift program that accept two positive integer values and test whether the larger value is in the range 20..30 inclusive, or return 0 if neither is in that range.
Click me to see the solution

18. Write a Swift program to test whether the last digit of the two given non-negative integer values are same or not.
Click me to see the solution

19. Write a Swift program to convert the last three characters in upper case. If the string has less than 3 chars, lowercase whatever is there.
Click me to see the solution

20. Write a Swift program to check if the first instance of "a" in a given string is immediately followed by another "a".
Click me to see the solution

21. Write a Swift program to create a string made of every other char starting with the first from a given string. So "Python" will return "Pto"
Click me to see the solution

22. Write a Swift program to count the number of 7's in a given array of integers.
Click me to see the solution

23. Write a Swift program to check if one of the first 4 elements in a given array of integers is a 7. The length of the array may be less than 4.
Click me to see the solution

24. Write a Swift program to test if the sequence of numbers 0, 1, 2 appears in a given array of integers somewhere.
Click me to see the solution

25. Write a Swift program to create a new string where all the character "a" have been removed except the first and last positions.
Click me to see the solution

26. Write a Swift program to create a string taking characters at indexes 0, 2, 4, 6, 8, .. from a given string.
Click me to see the solution

27. Write a Swift program to count the number of times that two 7's are next to each other in a given array of integers.
Click me to see the solution

28. Write a Swift program to test whether a value presents sequentially three times in an array of integers or not.
Click me to see the solution

Swift Programming Code Editor: