You are given an array of strings. Your task is to output a new array of strings where each string contains the letter "b".


  1. 1. First, you need to determine the size of your new array. Use a for-each loop and an if statement to check each word for the presence of the desired letter. You can check if a string contains a letter using the contains() method;
    1. 2. Create a separate variable of type int and increase it each time you find a word with the desired letter;
  2. 3. Now, you need to create a new string array with the size you calculated in the first loop;
  3. 4. Use a for-each loop and a separate variable to store the elements in the new array; It should look something like this: result[index] = element; index++;
  4. 5. Don't forget to use an if statement in the second loop to check if the string contains the desired letter.

This is a challenging task. If you're having trouble, you can confidently click the solution button and analyze what's written there.

package com.example;

public class Main {
    public static void main(String[] args) {
        String[] input = {"ball", "programming", "combination", "winter", "probability", "chair"};
        int length = 0; // creating a new int variable to calculate the length of the new array
        for (String element : input) { // using for-each loop to calculate the length of the new array
            if (element.contains("b")) {
                length++; //incrementing our length every time we see that element of input array contains "b"
        String[] result = new String[length]; //creating new string array with length that we have calculated before
        int index = 0; //creating a new int variable that will be responsible for indexing in our result array
        for (String element : input) { //using for-each loop to add each element that contains letter "b" from first array into second one
            if (element.contains("b")) {
                result[index] = element; // adding element that passes our condition
                index++; //incrementing the index in our new array
        for (String element : result) { //using for-each loop to output our result array
            System.out.print(element + " ");

Everything was clear?

Section 5. Chapter 4