Basic Computer Science programs
Basics
- Print Hello World!
Java | C Language | C++ | Python | C# | Go | JavaScript | Kotlin | Ruby - Print a multiline Hello World!
Java | C Language | C++ | Python | C# | Go | JavaScript | Kotlin | Ruby - Scan name of user and say hello with name
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Take age and tell whether its infant or child or adult
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Take a character and tell its vowel or consonant
Java | C Language | C++ | Python | C# | Go | JavaScript - Print numbers from 1 to 10 using for loop
Java | C Language | C++ | Python | C# | Go | JavaScript - Print numbers from 1 to 10 using while loop
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Take birth year and tell age
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Take a number between 0 to 9 and print the word representation for that number
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Take a max limit from user and generate a random number till that number
Java | C Language | C++ | Go | JavaScript - Generate random string
Java | JavaScript - Show current time in milliseconds
Java - Show current day
Java - Print present year
Java - Print present month
Java - Print present date
Java - Show current time in seconds
Java
Basic Math
- Take two numbers from user and add those two numbers
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Find largest number from given 2 numbers
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Find largest number from given 3 numbers
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Print table for given number
Java | C Language | C++ | Python | C# | Go | JavaScript - Take a year as input and tell whether it's a leap year or not
Java | C Language | C++ | C# | Go | JavaScript - Multiply given two numbers
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Take a number as input and tell its positive or negative
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Take a number as input and calculate the square of that number
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Take a number as input and calculate the square root of given number
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Take a number as input and tell its even or odd number
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Take a number as input and tell its a Prime number or not
- Average of given 3 numbers
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Average of given n Numbers
- Print tables from 1 to 20
Java | C Language | C++ | C# | Go | JavaScript - Calculate interest
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Print fibonacci series
- Sum of n natural numbers
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Factorial of given number
Java | C Language | C++ | Python | C# | Go | JavaScript - Calculate discount
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - Calculate salary hike
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby
Math - geometry
- How to calculate triangle area
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - How to calculate triangle circumference
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - How to calculate rectangle area and circumference
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - How to calculate trapezoid area
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - How to calculate trapezoid circumference
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - How to calculate parallelogram area
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - How to calculate parallelogram circumference
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - How to calculate circle area
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - How to calculate circle circumference
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - How to calculate square area and circumference
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby
Note: (Refer https://www.science.co.il/formula/ )
Math - Unit conversions
- Fahrenheit to celsius
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - centimeters to millimeters
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - millimeters to centimeters
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - feet to inches
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - inches to feet
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - kilometers to miles
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - miles to kilometers
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - grams to kilograms
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - kilograms to grams
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - days to hours
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - hours to seconds
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - hours to milliseconds
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - days to seconds
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - hours to minutes
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - days to milliseconds
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - dollars to rupees
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby - rupees to dollars
Java | C Language | C++ | Python | C# | Go | JavaScript | Ruby
String operations
- Find length of a string
Java | C Language | C# | Go | JavaScript | Ruby - Convert given string to lower case
Java | C# | Go | JavaScript | Ruby - Join two given strings
Java | C Language | C# | Go | JavaScript | Ruby - Replace spaces with hyphen in a string
Java | C# | Go | JavaScript | Ruby - Find the occurrences of a character in a String
- Compare two strings are equal or not
Java | C# | Go | JavaScript | Ruby - Compare two strings are equal by ignoring the case
Java | C# | Go | JavaScript | Ruby - Print character at given index in a given string
Java | C# | Go - Find the index of a particular character in a given string
Java | C# | Go | JavaScript - Print given string in reverse order
Java | C# | JavaScript - Convert given string to upper case
Java | C# | Go | JavaScript | Ruby
Shapes
- Print Pyramid with stars
- Print Pyramid with numbers
- Print Pyramid with alphabets
- Print Reverse Pyramid with stars
- Print Reverse Pyramid with numbers
- Print Reverse Pyramid with alphabets
- Print hollow Pyramid with stars
- Print hollow Pyramid with numbers
- Print hollow Pyramid with alphabets
- Print Reverse hollow Pyramid with stars
- Print Reverse hollow Pyramid with numbers
- Print Reverse hollow Pyramid with alphabets
- Print Square shape with stars
Java - Print Square shape with numbers
Java - Print Square shape with alphabets
Java
Files
- Create a file with a name
- Write content to file
- Rename a file
- Read content from a file
- Check size of a file
- Get File created data and last modified date
- List files in a folder
- Create a folder
- Rename folder
- Delete a folder
Difficult
- Reverse a number
- Check given number Palindrome or not
- Check given number Armstrong number or not
- Average of given n numbers
- Find most repeated word from a file