Finding all uppercase letters of a string in java

Question

So I\'m trying to find all the uppercase letters in a string put in by the user but I keep getting this runtime error:

Exception in thread \"main\" java.lan         


        

Answer 1

You can increase the readability of your code and benefit from some other features of modern Java here. Please use the Stream approach for solving this problem. Also, I suggest importing the least number of libraries into your class. Please avoid using .* while importing.

import java.util.Scanner;

public class P43 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Please give a string: ");
        String x = in.next();
        x.chars().filter(c -> Character.isUpperCase(c))
                .forEach(c -> System.out.print((char) c + " "));
    }
}

Sample input:

saveChangesInTheEditor

Sample output:

C I T E