Java Programs for Interviews

Course Curriculum

Chapter 1: First Set (1 to 10 Programs)

Lecture 1: Program 1 – What is the output for System.out.println(-6+4*2); ?

Lecture 2: Program 2 – Java Program – What is the output for System.out.println((2+3)4);

Lecture 3: Program 3 – What is the output for System.out.println(9+6-3*4/2%5);

Lecture 4: Program 4 – In-taking two numbers using Scanner and printing their sum

Lecture 5: Program 5 – Check whether the given input number is even or odd

Lecture 6: Program 6 – Printing the multiplication table of the given input number

Lecture 7: Program 7 – Check whether the given year is a Leap Year

Lecture 8: Program 8 – What is the output for System.out.println(7+(3*5)*(4/2)+(5%3)-1);

Lecture 9: Program 9 – Check whether the given character is a Vowel

Lecture 10: Program 10 – Print the area of a circle

Chapter 2: Second Set (11 to 20 Programs)

Lecture 1: Program 11 – Intake two numbers and finds the quotient and reminder

Lecture 2: Program 12 – Find the perimeter of the circle

Lecture 3: Program 13 – Find the power of a number

Lecture 4: Program 14 – Find the sum of first 100 numbers

Lecture 5: Program 15 – Intake 6 numbers as input and prints their average

Lecture 6: Program 16 – Find the sum of all even numbers from 1 to 10

Lecture 7: Program 17 – Intake width and height of a Rectangle and there by print its area

Lecture 8: Program 18 – Swap two numbers

Lecture 9: Program 19 – Intake width and height of a Rectangle and find its perimeter

Lecture 10: Program 20 – Find the sum of all the digits in the inputed number

Chapter 3: Third Set (21 to 30 Programs)

Lecture 1: Program 21 – Convert a String to integer

Lecture 2: Program 22 – Convert an integer to String

Lecture 3: Program 23 – Intakes String and prints the duplicate characters along with …

Lecture 4: Program 24 – Print the number of letters, digits, spaces in the statement ..

Lecture 5: Program 25 – Print the Fibonacci series till the inputed number

Lecture 6: Program 26 – Reverse a String

Lecture 7: Program 27 – Check whether the given String text is a Palindrome

Lecture 8: Program 28 – Check whether the given number is a palindrome

Lecture 9: Program 29 – Find the Square of the given number

Lecture 10: Program 30 – Find the Cube of the given number

Chapter 4: Fourth Set (31 to 40 Programs)

Lecture 1: Program 31 – Find whether the given number is an Armstrong number

Lecture 2: Program 32 – Find the factorial of the given number

Lecture 3: Program 33 – Remove the duplicates from Array with the help of HashSet

Lecture 4: Program 34 – Delete duplicates from Sorted Array using index

Lecture 5: Program 35 – Find the duplicate elements in the array using index

Lecture 6: Program 36 – Find the duplicate element in the array using HashSet

Lecture 7: Program 37 – Count the number of digits in the given number

Lecture 8: Program 38 – Count the digits in the given number

Lecture 9: Program 39 – Count the number of even and odd digits in the given number

Lecture 10: Program 40 – Find the largest of given three numbers

Chapter 5: Fifth Set (41 – 50 Programs)

Lecture 1: Program 41 – Find the sum of all the elements in the Array

Lecture 2: Program 42 – Separately print the even and odd number in the given array

Lecture 3: Program 43 – Reverse the given number

Lecture 4: Program 44 – Generate a random number within the given range

Lecture 5: Program 45 – Compare two arrays

Lecture 6: Program 46 – Logic to compare two arrays without using inbuilt methods

Lecture 7: Program 47 – Find the missing element in the array

Lecture 8: Program 48 – Find the maximum and minimum in the given Array

Lecture 9: Program 49 – Search for the given element in the array

Lecture 10: Program 50 – Printing the Array

Chapter 6: Sixth Set (51 – 60 Programs)

Lecture 1: Program 51 – Sorting the elements in the Array using build-in functions

Lecture 2: Program 52 – Remove special characters, spaces and other from the given String..

Lecture 3: Program 53 – Remove white spaces in the given string text

Lecture 4: Program 54 – Find the number of occurrence of a character in the given String..

Lecture 5: Program 55 – Reverse each and every word in the given String text

Lecture 6: Program 56 – Print the Version of Java installed in your machine

Lecture 7: Program 57 – Compare two given numbers

Lecture 8: Program 58 – Find the ASCII value of the given character

Lecture 9: Program 59 – Print the text in the specified format

Lecture 10: Program 60 – Print the current system date and time

Chapter 7: Seventh Set (61 to 70 Programs)

Lecture 1: Program 61 – Print the Date and Time in a different format

Lecture 2: Program 62 – Print the odd numbers from 1 to 10

Lecture 3: Program 63 – Intakes a number and prints whether the given number is even or odd

Lecture 4: Program 64 – Display the numbers from 1 to 25 which are divisible by both 2 & 3

Lecture 5: Program 65 – Intakes number of seconds and converts to hours, minutes & seconds

Lecture 6: Program 66 – Find the factors of the number and the count number of factors

Lecture 7: Program 67 – Capitalize the first letter of each word in the given statement

Lecture 8: Program 68 – Convert the given String text to lower case

Lecture 9: Program 69 – Print the pyramid pattern

Lecture 10: Program 70 – Print the number triangle pyramid

Chapter 8: Eight Set (71 to 80 Programs)

Lecture 1: Program 71 – Print the number pyramid

Lecture 2: Program 72 – Find the greatest common divisor of given numbers

Lecture 3: Program 73 – Find the square root of the given number

Lecture 4: Program 74 – Reverse an Array using Java Collections

Lecture 5: Program 75 – Receive input from the User and saving into Array

Lecture 6: Program 76 – Reverse the elements in the array

Lecture 7: Program 77 – Reverse the position of words in the String using Collections

Lecture 8: Program 78 – Find the penultimate word of a sentence

Lecture 9: Program 79 – Calculates reminder of two numbers without using modulus operator

Lecture 10: Program 80 – Insert a word in the middle of the given text

Chapter 9: Ninth Set (81 to 90 Programs)

Lecture 1: Program 81 – Print the last three letters of the given text

Lecture 2: Program 82 – Print the first half of the given string text

Lecture 3: Program 83 – Find the size or length of the given String

Lecture 4: Program 84 – Find the number of elements in the given array

Lecture 5: Program 85 – Find the number of elements in the ArrayList

Lecture 6: Program 86 – Right rotate an Array by 1 element

Lecture 7: Program 87 – Right rotate an Array by 3 elements

Lecture 8: Program 88 – Left rotate an Array by 1 element

Lecture 9: Program 89 – Left rotate an Array by 3 elements

Lecture 10: Program 90 – Swap first and last elements of the Array

Chapter 10: Tenth Set (91 to 100 Programs)