Question

Create a class called Play that has an InputReader as an instance variable. Be sure to initialize it in the constructor. The class has two methods. Write a method with this signature:

Write a method with this signature:

public void stringPlay()

The method prompts the user for a string, reads it in, and then displays the string as many times as the length of that string. The output string should be formatted with the first letter uppercase and the rest lowercase. For example:

If the user enters jAvA

The result will be Java Java Java Java

Write a method with this signature:

public void getMultiplicationTable()

This method will use a while loop to ask the user to enter two integer numbers between 1 and 10, the while loop will stop if the numbers provided by the user were in the specified range otherwise, an error message will be printed and the user will be asked to enter another two numbers. The first number given by the user will be incremented by one then used as the rows number and the second one will be incremented by 1 and used as the column number of a two dimensional array. The method will calculate the multiplication table and store it in the array and then display it. Example if the user entered 5, 7 your code should create an int array with 6 rows and 8 columns and then creates and load the array with the multiplication table. The printed result should be like so:

0 0 0 0 0 0 0 0

0 1 2 3 4 5 6 7

0 2 4 6 8 10 12 14

0 3 6 9 12 15 18 21

0 4 8 12 16 20 24 28

0 5 10 15 20 25 30 35

Create a main method: public static void main(String[] args)

In the method create an object of class Play and then call the methods stringPlay () and getMultiplicationTable()

Answer 1

Thanks for the question. Below is the code you will be needing. Let me know if you have any doubts or if you need anything to change. 

Let me know for any help with any other questions.

Thank You !

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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Play {

    private BufferedReader reader;

    public Play() {
        reader =
                new BufferedReader(new InputStreamReader(System.in));
    }

    public void stringPlay() {
        System.out.print("Enter a string: ");
        try {
            String word = reader.readLine();
            for (int times = 1; times <= word.length(); times++) {
                word = word.toLowerCase();
                System.out.println(word.substring(0, 1).toUpperCase() + word.substring(1));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void getMultiplicationTable() {

        int first = 1, second = 1;

        try {
            System.out.print("Enter the first number (1-10) : ");
            first = Integer.parseInt(reader.readLine());
            System.out.print("Enter the second number (1-10) : ");
            second = Integer.parseInt(reader.readLine());
        } catch (IOException e) {
            e.printStackTrace();
        }
        while (1 <= first && first <= 10 && 1 <= second && second <= 10) {

            int tables[][] = new int[first + 1][second + 1];
            for (int row = 0; row < tables.length; row++) {
                for (int col = 0; col < tables[row].length; col++) {
                    tables[row][col] = row * col;
                }
            }

            for (int row = 0; row < tables.length; row++) {
                for (int col = 0; col < tables[row].length; col++) {
                    System.out.printf("%4d",tables[row][col]);
                }
                System.out.println();
            }

            try {
                System.out.print("Enter the first number (1-10) : ");
                first = Integer.parseInt(reader.readLine());
                System.out.print("Enter the second number (1-10) : ");
                second = Integer.parseInt(reader.readLine());
            } catch (IOException e) {
                e.printStackTrace();
            }

        }
        System.out.println("Error : value(s) out of range.");

    }

    public static void main(String[] args) {

        Play play = new Play();
        play.stringPlay();
        play.getMultiplicationTable();
    }
}

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Play.java x new DUITETEUREAUET (new InputSLIEGUREAUET (Pystem. I 1: Project Run: + → IR public void stringPlay () { System.out.print("Enter a string: "); try { String word = reader.readLine(); for (int times = 1; times <= word. length(); times++) { Play Play "C:\Program Files\Java\jdk-11\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\Intel Enter a string: JAVA Java Java Java Java Enter the first number (1-10) : 5 Enter the second number (1-10) : 7 0 0 0 0 0 0 0 0 0 1 2 3 4 5 6 7 0 2 4 6 8 10 12 14 0 3 6 9 12 15 18 21 0 4 8 12 16 20 24 28 0 5 10 15 20 25 30 35 Enter the first number (1-10) : 0 Enter the second number (1-10) : 0 Error : value (3) out of range. Process finished with exit code 0 1. Z: Structure 4 Run 6: TODO 2 Terminal = 0: Messages Compilation completed successfully in 1 s 661 ms (moments ago)