🐍 Python

1 Hello World

2 Add Two Numbers

3 Even or Odd

4 Swap Two Variables

5 Find Maximum of Three Numbers

6 Factorial (Recursive)

7 Fibonacci Sequence

8 Two Sum

9 Check Prime Number

10 FizzBuzz

11 Reverse a String

12 Count Vowels

13 Bubble Sort

14 Linear Search

15 Binary Search

16 Sum of Digits

17 Armstrong Number

18 Palindrome Check

19 List Comprehension — Squares

20 Word Count in a String

21 Remove Duplicates from List

22 GCD and LCM

23 Merge Two Sorted Lists

24 Matrix Addition

25 Simple Class — Student

26 Exception Handling

27 Map and Filter

28 Star Pattern — Triangle

29 Convert Celsius to Fahrenheit

30 Dictionary Phone Book

⚙️ C Language

31 Hello World

32 Add Two Numbers

33 Even or Odd

34 Swap Two Variables

35 Maximum of Three Numbers

36 Factorial Using Loop

37 Fibonacci Series

38 Palindrome Number

39 Check Prime Number

40 Bubble Sort

41 Linear Search

42 Binary Search

43 Reverse an Array

44 String Length Without strlen

45 Palindrome String

46 Sum of Digits

47 Armstrong Number

48 Pointer Basics

49 Struct — Student Record

50 GCD Using Recursion

51 Power Function (Recursion)

52 Star Pattern Triangle

53 Number Pattern

54 Count Digits

55 Call by Reference

56 Array Average

57 Decimal to Binary

58 String Concatenation

59 Matrix Multiplication

60 Temperature Converter

61 Count Vowels in String

☕ Java

62 Hello World!

63 Hello World

64 Add Two Numbers

65 Even or Odd

66 Swap Two Numbers

67 Find Maximum of Three

68 Factorial Calculator

69 Fibonacci Series

70 Reverse String

71 Check Prime Number

72 FizzBuzz

73 Palindrome Check

74 Bubble Sort

75 Linear Search

76 Binary Search

77 Sum of Array Elements

78 Armstrong Number

79 Star Pattern Triangle

80 GCD of Two Numbers

81 String Frequency Counter

82 ArrayList Operations

83 Simple Class — Student

84 Interface Example

85 Exception Handling

86 Number Pyramid

87 Type Casting

88 Power Using Recursion

89 String Methods Demo

90 For-Each with Array

91 Static Methods

92 Do-While Loop

93 Inheritance Example

Java

Hello World!

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Java Code

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}

Expected Output

Hello, World!