Count Uppercase Letters in Java
Count number of uppercase letters in a string.
BeginnerModule 4: String ProgramsExample 17 of 25
count-uppercase-letters.java
1import java.util.Scanner;23public class Main {4 public static void main(String[] args) {5 Scanner sc = new Scanner(System.in);6 System.out.print("Enter a string: ");7 String s = sc.nextLine();89 int count = 0;10 for (int i = 0; i < s.length(); i++) {11 if (Character.isUpperCase(s.charAt(i))) {12 count++;13 }14 }15 System.out.println("Uppercase letters: " + count);16 sc.close();17 }18}
Output
Enter a string: Hello World Uppercase letters: 2
What's going on
We use Character.isUpperCase on each character.