Here is the list of all Java programs available in this blog. You can find basic level programs as well as advanced level programs. All of these programs have been categorised below. Click on the buttons inside the tabbed menu to explore those categories.
- Hello, World! Program
- Addition, subtraction, multiplication and division
- Convert a character to ASCII value
- Convert ASCII value to a character
- Compute Quotient and Remainder
- Swap two numbers without third variable
- Swap two numbers using third variable
- Swap two numbers using X-OR
- Fahrenheit to Celsius conversion
- Centigrade to Fahrenheit conversion
- Simple interest
- Calculate percentage of a number
- Conversion between Kilograms and Grams
- Check vowel or consonant
- Check if a character is a digit
- Conversion between uppercase and lowercase letter
- Check if a number is positive or negative
- Check if a number is even or odd
- Find largest among three numbers
- Check if a number is a perfect square
- Check leap year
- Simple calculator
- Calculate profit and loss
- Roots of quadratic equation
- Find the letter grade of a student
- Find the age group
- Calculate income tax
- Display month according to input number
- Conversion between 12-hour and 24-hour time format
- Print natural numbers from 1 to N
- Print natural numbers using recursion
- Sum of first N natural numbers / Sum of series 1 + 2 + 3 + .. + N
- Print all numbers in a range
- Compound interest
- Display letters from A to Z
- Factorial of a number
- Count no of digits
- Power of a number
- Sum of the digits of a number
- Check amstrong number
- Find amstrong numbers between interval
- Reverse of a number
- Find sum and average of N numbers
- Display N th fibonacci number
- Display fibonacci sequence
- Display fibonacci sequence upto N
- Check a number is a palindrome or not
- Count palindrome between intervals
- Check a number is a prime or not
- Display all prime numbers upto N
- Display first N prime numbers
- Display prime numbers between interval
- Find the value of permutation and combination
- Find the frequency of a digit in a number
- Find the average and sum until 0 is entered
- Find minimum number of currency notes to make an amount N
- Display multiplication table
- Check perfect number
- Square pattern
- Rectangle pattern
- Rhombus pattern
- Half diamond pattern
- Diamond pattern
- Right triangle, Half pyramid pattern
- Full pyramid pattern
- Inverted full pyramid pattern
- Snake number pattern
- Spiral pattern
- Hollow rectangle pattern
- Hollow rhombus pattern
- Hollow diamond pattern
- Hollow pyramid pattern
- Floyd's triangle pattern
- Pascal's triangle pattern
- Find largest element
- Find smallest element
- Find sum and average of N numbers
- Display array in reverse
- Rotate an array
- Check if a number is even or odd
- Check equality of two matrices
- Matrix addition
- Matrix subtraction
- Matrix multiplication
- Check lower triangular matrix
- Check upper triangular matrix
- Calculate the Area, Perimeter and Diagonal of a square
- Calculate Area, Perimeter and Diagonal of a Rectangle
- Calculate Diameter, Area and Perimeter of a Circle
- Find Area, Perimeter and Side of a Rhombus
- Rock paper scissors random approach
- Multiply large numbers
Basic
Decision making
Loop & Recursion
Pattern
Array
Bitwise operation
Matrix
Geometry
Games
Miscellaneous
Basic
- Hello, World! program
- Addition, subtraction, multiplication and division
- Convert a character to ASCII value
- Convert ASCII value to a character
- Compute quotient and remainder
- Swap two numbers without third variable
- Swap two numbers using third variable
- Swap two numbers using X-OR
- Fahrenheit to Celsius conversion
- Centigrade to Fahrenheit conversion
- Calculate simple interest
- Calculate percentage of a number
- Conversion between Kilograms and Grams
Decision making
- Check vowel or consonant
- Check if a character is a digit
- Conversion between uppercase and lowercase letter
- Check if a number is positive or negative
- Check if a number is even or odd
- Find largest among three numbers
- Check if a number is a perfect square
- Check leap year
- Simple calculator
- Calculate profit and loss
- Roots of quadratic equation
- Find the letter grade of a student
- Find the age group
- Calculate income tax
- Display month according to input number
- Conversion between 12-hour and 24-hour time format
Loop & Recursion
- Print natural numbers from 1 to N
- Print natural numbers using recursion
- Sum of first N natural numbers / Sum of series 1 + 2 + 3 + .. + N
- Print all numbers in a range
- Compound interest
- Display letters from A to Z
- Factorial of a number
- Count no of digits
- Power of a number
- Sum of the digits of a number
- Check amstrong number
- Find amstrong numbers between interval
- Reverse of a number
- Find sum and average of N numbers
- Display fibonacci sequence
- Display N th fibonacci number
- Display fibonacci sequence upto N
- Check a number is a palindrome or not
- Count palindrome between intervals
- Check a number is a prime or not
- Display all prime numbers upto N
- Display first N prime numbers
- Display prime numbers between interval
- Find the value of permutation and combination
- Find the frequency of a digit in a number
- Find the average and sum until 0 is entered
- Find minimum number of currency notes to make an amount N
- Display multiplication table
- Check perfect number
Array
Pattern
- Square pattern
- Rectangle pattern
- Rhombus pattern
- Half diamond pattern
- Diamond pattern
- Right triangle, Half pyramid pattern
- Full pyramid pattern
- Inverted full pyramid pattern
- Snake number pattern
- Spiral pattern
- Hollow rectangle pattern
- Hollow rhombus pattern
- Hollow diamond pattern
- Hollow pyramid pattern
- Floyd's triangle pattern
- Pascal's triangle pattern