lettersMatchIgnoreCase

package Curs19;

import java.util.Arrays;
import java.util.Scanner;

public class Ex2Filter {

	public static String[] lettersMatchIgnoreCase(String[] arrTLC, String key) {
		String[] answear = new String[arrTLC.length];
		int numElem = 0;
		char[] ch = new char[key.length()];
		ch = key.toCharArray();
		for (int i = 0; i < arrTLC.length; i++) {
			for (int j = 0; j < arrTLC[i].length(); j++) {
				for (int k = 0; k < ch.length; k++) {
					if (ch[k] == arrTLC[i].charAt(j) && j == k) {
						answear[numElem] = arrTLC[i];
						numElem++;
						break;
					}
				}

			}
		}
		answear = Arrays.copyOf(answear, numElem);
		return answear;
	}

	public static void printArray(String[] answear) {
		for (int i = 0; i < answear.length; i++) {
			System.out.print(answear[i] + " ");
		}
	}

	public static String[] convertToLowerCase(String[] array) {
		String[] answear = new String[array.length];
			for (int i = 0; i < array.length; i++) {
				answear[i] = array[i].toLowerCase();
			}

		return answear;
	}

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String[] array = new String[2];
		String stopStr = "stop";
		int numOfStr = 0;

		System.out.println("Enter the strings:");
		String s = sc.next();
		while (!s.equals(stopStr)) {
			array[numOfStr] = s;
			numOfStr++;

			if (numOfStr == array.length) {
				array = Arrays.copyOf(array, array.length * 2);
			}

			s = sc.next();
		}

		array = Arrays.copyOf(array, numOfStr);

		System.out.println("Enter the key word:");
		String key = sc.next();

		String[] arrTLC = convertToLowerCase(array);

		String[] answear = lettersMatchIgnoreCase(arrTLC, key);

		printArray(answear);
		//System.out.println();
		//removeDuplicate(answear);

		//Exemplu:
		//strings: border ant drop Fly racoon class Plane
		//key: plot
		//RETURN: ["drop", "Fly", "class", "Plane"]
		sc.close();
	}

}