| SL | Program | Sources | ||
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| C++ | Python | Java | ||
| 1 | Area of Square |  |
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| 2 | Area of Rectangle | |
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| 3 | Area of Circle | |
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| 4 | Area of Triangle | |
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| 5 | Area of Triangle - (All sides known or Herons Formula) | |
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| 6 | Area of Rhombus | |
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| 7 | Area, volume and diameter of Sphere | |
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| 8 | Average calculation | |
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| 9 | Average calculation of pre-defined array | |
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| 10 | Average calculation of a certain number by input data (array) | |
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| 11 | Celsius to Fahrenheit | |
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| 12 | Fahrenheit to Celsius | |
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| 13 | Check prime number | |
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| 14 | Print prime numbers in a range | |
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| 15 | Check armstrong number | |
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| 16 | Check entered input is Even or Odd | |
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| 17 | Check entered input is Positive or Nagetive | |
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| 18 | Leap year checking | |
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| 19 | Days to months and weeks conversion | |
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| 20 | Fibonacci Series of nth number of elements | |
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| 21 | Find the Roots of a Quadratic Equation | |
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| 22 | Find Factorial of a Number | |
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| 23 | Fibonacci Series to nth terms | |
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| 24 | Print 1 to nth even numbers | |
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| 25 | Print 1 to nth odd numbers | |
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| 26 | Kilometer to miles | |
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| 27 | Miles to Kilometer | |
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| 28 | Multiplication table | |
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| 29 | Vowel & consonant checking | |
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| 30 | Calculate the sum of natural numbers using for loop | |
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| 31 | Calculate the sum of natural numbers using while loop | |
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| 32 | Calculate the sum of natural numbers by formula | |
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| 33 |
Calculate the sum of natural numbers by formula and conditional check
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| 34 | Swap two defined numbers or variables | |
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| 35 | Swap two input numbers or variables | |
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| 36 | Sorting defined numbers - from ascending to descending | |
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| 37 | Sorting defined numbers - from descending to ascending | |
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| 38 | Sorting input numbers - from ascending to descending | |
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| 39 | Sorting input numbers - from descending to ascending | |
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| 40 | Find largest between two numbers - defined values | |
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| 41 | Find largest between two numbers - input values | |
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| 42 | Find largest between three numbers - defined values | |
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| 43 | Find largest between three numbers - input values | |
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| 44 | Find smallest between two numbers - defined values | |
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| 45 | Find smallest between two numbers - input values | |
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| 46 | Find smallest between three numbers - defined values | |
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| 47 | Find smallest between three numbers - input values | |
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| 48 | Find largest number from array - defined values | |
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| 49 | Find largest number from array - input values | |
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| 50 | Find smallest number from array - defined values | |
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| 51 | Find smallest number from array - input values | |
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| 52 | Find largest and smallest number from array - defined values | |
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| 53 | Find largest and smallest number from array - input values | |
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| 54 | CGPA - Points to Grade calculation | |
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| 55 | CGPA - Grade to Points calculation | |
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| 56 | CGPA - Grade to Points calculation (swtich case) | |
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| 57 | Find CGPA Points by obtained marks | |
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| 58 | Find CGPA Letter Grade by obtained marks | |
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| 59 | Find CGPA Letter Grade & Points at once by obtained marks (Simple) | |
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| 60 | Find CGPA Letter Grade & Points at once by obtained marks (Advance) | |
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| 61 | GPA - Points to Grade calculation | |
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| 62 | GPA - Grade to Points calculation | |
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| 63 | GPA - Grade to Points calculation (switch case) | |
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| 64 | Find GPA Points by obtained marks | |
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| 65 | Find GPA Letter Grade by obtained marks | |
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| 66 | Find GPA Letter Grade & Points at once by obtained marks (Simple) | |
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| 67 | Find GPA Letter Grade & Points at once by obtained marks (Advance) | |
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| 68 | GPA calculation by 3 number of subjects marks (variable) | |
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| 69 | GPA calculation of a certain number of subject marks (array) | |
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| 70 |
GPA calculation of a certain number of subject with combined, half-marks and optional subject (Advance)
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- In the Java programs I didn't use public class to consider the program name. In case if you use public class in the java programs, make sure to update the class name. Follow
this link to know about the difference between class vs public class. 
Skip any grammatical mistakes in the programs.
Feel free to Create an issue, if you found any problem to any program.