Scala Programming Basic - Exercises, Practice, Solution

Scala Programming Basic [26 exercises with solution]

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1. Write a Scala program to print "Hello, world" and version of the Scala language.
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2. Write a Scala program to compute the sum of the two given integer values. If the two values are the same, then return triples their sum.
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3. Write a Scala program to get the absolute difference between n and 51. If n is greater than 51 return triple the absolute difference.
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4. Write a Scala program to check two given integers, and return true if one of them is 30 or if their sum is 30.
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5. Write a Scala program to check a given integer and return true if it is within 20 of 100 or 300.
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6. Write a Scala program to create a new string where 'if' is added to the front of a given string. If the string already begins with 'if', return the string unchanged.
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7. Write a Scala program to remove the character in a given position of a given string. The given position will be in the range 0...string length -1 inclusive.
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8. Write a Scala program to exchange the first and last characters in a given string and return the new string.
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9. Write a Scala program to create a new string which is 4 copies of the 2 front characters of a given string.If the given string length is less than 2 return the original string.
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10. Write a Scala program to create a new string with the last char added at the front and back of a given string of length 1 or more.
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11. Write a Scala program to check whether a given positive number is a multiple of 3 or a multiple of 7.
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12. Write a Scala program to create a new string taking the first 3 characters of a given string and return the string with the 3 characters added at both the front and back. If the given string length is less than 3, use whatever characters are there.
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13. Write a Scala program to check whether a given string starts with 'Sc' or not.
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14. Write a Scala program to check whether one of the given temperatures is less than 0 and the other is greater than 100.
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15. Write a Scala program to check two given integers whether either of them is in the range 100..200 inclusive.
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16. Write a Scala program to check whether three given integer values are in the range 20..50 inclusive. Return true if 1 or more of them are in the said range otherwise false.
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17. Write a Scala program to check whether two given integer values are in the range 20..50 inclusive. Return true if 1 or other is in the said range otherwise false.
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18. Write a Scala program to check whether a string 'yt' appears at index 1 in a given string. If it appears return a string without 'yt' otherwise return the original string.
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19. Write a Scala program to check the largest number among three given integers.
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20. Write a Scala program to check which number is nearest to the value 100 among two given integers. Return 0 if the two numbers are equal.
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21. Write a Scala program to check whether two given integers are in the range 40..50 inclusive, or they are both in the range 50..60 inclusive.
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22. Write a Scala program to find the larger value from two positive integer values in the range 20..30 inclusive, or return 0 if neither is in that range.
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23. Write a Scala program to check whether a given character presents in a string between 2 to 4 times.
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24. Write a Scala program to check whether two given positive integers have the same last digit.
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25. Write a Scala program to convert the last 4 characters of a given string in upper case. If the length of the string has less than 4 then uppercase all the characters.
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26. Write a Scala program to create a new string which is n (non-negative integer ) copies of a given string.
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