### Java : Math - Exercises and Solution

1. Write a Java method to find the smallest number among three numbers

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2. Write a Java method to compute the average of three numbers

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3. Write a Java method to display the middle character of a string

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4. Write a Java method to count all vowels in a string

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5. Write a Java method to count all words in a string

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6. Write a Java method to compute the sum of the digits in an integer

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7. Write a Java method to display the first 50 pentagonal numbers

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8. Write a Java method to compute the future investment value at a given interest rate for a specified number of years

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9. Write a Java method to create the area of a pentagon

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10. Write a Java program to round a float number to specified decimals

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11. Write a Java program to count the absolute distinct value in an array

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12. Write a Java program to convert an integer value to absolute value

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13. Write a Java program to convert a float value to absolute value

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14. Write a Java program to accept a float value of number and return a rounded float value

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15. Write a Java program to accept two integers and return true if the either one is 15 or if their sum or difference is 15

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16. Write a Java program to count the number of prime numbers less than a given positive number

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17. Write a Java program to find the length of the longest sequence of zeros in binary representation of an integer

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18. Write a Java program to multiply two integers without using multiplication, division, bitwise operators, and loops

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19. Write a Java program to calculate power of a number without using multiplication(*) and division(/) operators

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20. Write a Java program to check if a given number is Fibonacci number or not

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21. Write a Java program to print all prime factors of a given number

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22. Write a Java program to convert Roman number to an integer number

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23. Write a Java program to Convert radian to a degree using library method

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24. Write a Java program to Demonstrate the Math.multiplyExact() method

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25. Write a Java program to Demonstrate the Math.subtractExact() method

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26. Write a Java program to Demonstrate the Math.floorDiv() method

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27. Write a Java program to Demonstrate the Math.copySign() method

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28. Write a Java program to Perform the ceiling operation on the decimal number using the library method

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29. Write a Java program to Round off the decimal number using the library method

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30. Write a Java program to Find the sign of given number using library method

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31. Write a Java program to Find the largest number between two numbers using the library method

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32. Write a Java program to Find the smallest number between two numbers using the library method

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33. Write a Java program to Find the absolute value of a number using library method

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34. Write a Java program to Find the cube root of a number using library method

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35. Write a Java program to Find the hyperbolic tangent of an angle

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36. Write a Java program to Find the hyperbolic cosine of an angle

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37. Write a Java program to Find the hyperbolic sine of an angle

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38. Write a Java program to Find the trigonometric arc tangent of an angle

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39. Write a Java program to Find the trigonometric arc cosine of an angle

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40. Write a Java program to Find the trigonometric arc sine of an angle

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41. Write a Java program to Find the trigonometric tangent of an angle

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42. Write a Java program to Find the trigonometric cosine of an angle

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43. Write a Java program to Find the trigonometric sine of an angle

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44. Write a Java program to Convert degree to radian using library method

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45. Write a Java program to Find the logarithmic value of a Number

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46. Write a Java program to Calculate area of Hexagon

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