Question

Hi, I need help with this Java activity.

The requirements are:

1. Create a NetBeans project for this activity.

2. Create a new class with attributes name and address. Both data type will be String. Create a constructor and assign the parameters to the attributes.

3. Create a class with the main method and create an instance of the class that you created in Test Stem 1.

4. Create an instance of the string in your test class and assign a value.

5. Now create a String and assign a value with spaces in the beginning, end and middle.

6. In your test class with main method, instantiate a string buffer with the initial value of “hello”. Use the method setLength with parameter. Print the string representation of the StringBuffer using toString().

Thank you in advance.

Answer 1

import java.util.*;

class Person

{

    private String name;

    private String address;

   

    // constructor

    Person()

    {

        this.name = "";

        this.address = "";

    }

   

    // constructor

    // Create a constructor and assign the parameters to the attributes.

    Person(String name, String address)

    {

        this.name = name;

        this.address = address;

    }

   

    // override toString() method

    public String toString()

    {

        return "Name : " + this.name + "\nAddress : " + this.address + "\n";

    }

}

class Test

{

    public static void main(String[] args)

    {

        // Create an instance of the string

        String name = "Chandler";

       

        // create a String and assign a value with spaces in the beginning, end and middle

        String address = " New York ";

       

        // create a new object of class Person

        Person p = new Person(name, address);

       

        System.out.println(p);

       

        // instantiate a string buffer with the initial value of "hello"

        StringBuffer s = new StringBuffer("Hello");

       

        // set the length to 3 using setLength() method

        s.setLength(3);

       

        System.out.println(s.toString());

    }

}

Sample Output