Question

Write a method named beginsWith that gets an array list of Strings named inputList, and a character named ch and returns an array list of Strings consisting all the words from inputList that starts with the character ch.

Answer 1

import java.util.ArrayList;

public class BeginsWith {

    public static ArrayList<String> beginsWith(ArrayList<String> strings, char ch) {
        ArrayList<String> result = new ArrayList<String>();
        for (int i = 0; i < strings.size(); i++) {
            if (strings.get(i).charAt(0) == ch) {
                result.add(strings.get(i));
            }
        }
        return result;
    }

    public static void main(String[] args) {
        ArrayList<String> strings = new ArrayList<String>();
        strings.add("hello");
        strings.add("hi");
        strings.add("how");
        strings.add("are");
        strings.add("you?");

        System.out.println(beginsWith(strings, 'h'));
    }
}