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Print "Hello, World" public class HelloWorld { public static void main(String[] args) { System.out.println("Hello, World!"); } }
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Add Two Numbers public class AddNumbers { public static void main(String[] args) { int a = 10, b = 20; int sum = a + b; System.out.println("Sum: " + sum); } }
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Check Even or Odd public class EvenOdd { public static void main(String[] args) { int num = 7; if (num % 2 == 0) System.out.println("Even"); else } System.out.println("Odd"); }
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Reverse a String public class ReverseString { public static void main(String[] args) { String str = "Selenium"; String rev = ""; for (int i = str.length() - 1; i >= 0; i--) { rev = rev + str.charAt(i); } System.out.println("Reversed: " + rev); } }
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Find Largest of Three Numbers public class LargestNumber { public static void main(String[] args) { int a = 25, b = 78, c = 87; if (a > b && a > c) System.out.println("Largest: " + a); else if (b > c) System.out.println("Largest: " + b); else } System.out.println("Largest: " + c); }
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Print a Table of a Number public class Table { public static void main(String[] args) { int num = 5; for (int i = 1; i <= 10; i++) { System.out.println(num + " x " + i + " = " + (num * i)); } } }
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Count Vowels in a String public class VowelCount { public static void main(String[] args) { String str = "Automation"; int count = 0; for (int i = 0; i < str.length(); i++) { char ch = Character.toLowerCase(str.charAt(i)); if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u') count++; } } System.out.println("Vowels count: " + count); }
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Check if String is Palindrome public class Palindrome { public static void main(String[] args) { String str = "madam", rev = ""; for (int i = str.length() - 1; i >= 0; i--) { rev = rev + str.charAt(i); } if (str.equals(rev)) System.out.println("Palindrome"); else System.out.println("Not Palindrome"); } }
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Factorial of a Number public class Factorial { public static void main(String[] args) { int num = 5, fact = 1; for (int i = 1; i <= num; i++) { fact *= i; } System.out.println("Factorial: " + fact); } }
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Fibonacci Series public class Fibonacci { public static void main(String[] args) { int n = 10, a = 0, b = 1; System.out.print(a + " " + b + " "); for (int i = 2; i < n; i++) { int next = a + b; System.out.print(next + " "); a = b; b = next; } } }