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Java
Examples
Examples
Examples
Reverse a Number
Find Largest Element of an Array
Print an Integer (Entered by the User)
Check Whether a Number is Even or Odd [if-else & ternary]
Convert Binary Number to Octal and vice-versa
Count the Number of Vowels and Consonants in a Sentence
Display Fibonacci Series
Swap Two Numbers
Check Whether a Number is Positive or Negative
Find LCM of two Numbers
Check Whether an Alphabet is Vowel or Consonant [if-else & switch-case]
Compute Quotient and Remainder
Find ASCII Value of a character
Convert Binary Number to Decimal and vice-versa
Multiply two Floating Point Numbers
Calculate Standard Deviation
Calculate Average Using Arrays
Check Whether a Number can be Expressed as Sum of Two Prime Numbers
Compare strings
Convert inputstream to string
Find the largest among three numbers [if-else & nested if-else]
Create random strings
Convert int type variables to string
Convert int type variables to char
Capitalize the first character of each word in a string
Iterate over an arraylist
Clear the stringbuffer
Add two dates
Convert a list to array and vice versa
Get current working directory
Create string from contents of a file
Display alphabets (a to z) using loop
Convert int type variables to long
Print an array
Convert character to string and vice-versa
Calculate difference between two time periods
Iterate over a hashmap
Check if a set is the subset of another set
Print object of a class
Add two complex numbers by passing class to a function
Generate multiplication table
Count number of digits in an integer
Find gcd of two numbers
Display factors of a number
Display armstrong numbers between intervals using function
Add two matrix using multi-dimensional arrays
Check if a string/number is palindrome
Display prime numbers between two intervals
Convert octal number to decimal and vice-versa
Display prime numbers between intervals using function
Reverse a sentence using recursion
Check armstrong number
Find the frequency of character in a string
Multiply two matrices by passing matrix to a function
Multiply two matrix using multi-dimensional arrays
Display armstrong number between two intervals
Calculate the power using recursion
Find factorial of a number
Check leap year
Check whether a character is alphabet or not
Calculate the sum of natural numbers
Calculate the power of a number
Check whether a number is prime or not
Find all roots of a quadratic equation
Make a simple calculator using switch...case
Find factorial of a number using recursion
Find g.c.d using recursion
Add two integers
Find transpose of a matrix
Find the sum of natural numbers using recursion
Calculate the execution time of methods
Implement binary tree data structure
Convert file to byte array and vice-versa
Compute all the permutations of the string
Delete file
Iterate over a set
Check if a string is numeric
Remove duplicate elements from arraylist
Convert string to date
Convert string type variables into boolean
Append text to an existing file
Sort map by keys
Call one constructor from another
Convert double type variables to int
Get the middle element of linkedlist in a single iteration
Check if a string is a valid shuffle of two distinct strings
Convert double type variables to string
Implement linkedlist
Access private members of a class
Convert primitive types to objects and vice versa
Get the file extension
Implement quick sort algorithm
Differentiate string == operator and equals() method
Get the relative path from two absolute paths
Calculate the difference between two sets
Convert map (hashmap) to list
Convert boolean variables into string
Implement merge sort algorithm
Create an enum class
Access elements from a linkedlist
Determine the class of an object
Add elements to a linkedlist
Remove elements from the linkedlist
Check if two of three boolean variables are true
Convert a stack trace to a string
Convert a string into the inputstream
Remove all whitespaces from a string
Concatenate two arrays
Convert byte array to hexadecimal
Convert char type variables to int
Convert milliseconds to minutes and seconds
Convert string type variables into int
Count number of leaf nodes in a tree
Create custom exception
Create pyramid and pattern
Count number of lines present in the file
Get current date/time
Determine the name and version of the operating system
Get the name of the file from the absolute path
Implement binary search algorithm
Iterate through each characters of the string
Load file as inputstream
Join two lists
Check if a string contains a substring
Merge two lists
Pass lambda expression as a method argument
Convert outputstream to string
Implement the queue data structure
Check if two strings are anagram
Pass arraylist as the function argument
Read the content of a file line by line
Calculate the intersection of two sets
Check if a string is empty or null
Iterate over enum
Convert long type variables into int
Delete empty and non-empty directory
Lookup enum by string value
Perform the postorder tree traversal
Update value of hashmap using key
Sort elements in lexicographical order (dictionary order)
Sort a map by values
Round a number to n decimal places
Implement multiple inheritance
Convert the arraylist into a string and vice versa
Calculate union of two sets
Implement the graph data structure
Convert array to set (hashset) and vice-versa
Get key from hashmap using the value
Check the birthday and print happy birthday message
Detect loop in a linkedlist
Implement private constructors
Convert the inputstream into byte array
Iterate over arraylist using lambda expression
Convert the linkedlist into an array and vice versa
Sort arraylist of custom objects by property
Convert int type variables to double
Implement bubble sort algorithm
Create an immutable class
Calculate simple interest and compound interest
Convert string variables to double
Check if an array contains a given value
Perform the inorder tree traversal
Create file and write to the file
Implement stack data structure
Perform the preorder tree traversal
Implement switch statement on strings
Pass method call as arguments to another method
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