Create a Java class named HeadPhone to represent a headphone
Create a Java class named HeadPhone to represent a headphone set. The class contains:
Three constants named LOW, MEDIUM and HIGH with values of 1, 2 and 3 to denote the headphone volume.
A private int data field named volume that specifies the volume of the headphone. The default volume is MEDIUM.
A private boolean data field named pluggedIn that specifies if the headphone is plugged in. The default value is false.
A private String data field named manufacturer that specifies the name of the manufacturer of the headphones.
A private Color data field named headPhoneColor that specifies the color of the headphones.
A private String data field named headPhoneModel that specifies the Model of the headphones.
getter and setter methods for all data fields.
A no argument constructor that creates a default headphone.
A method named toString() that returns a string describing the current field values of
the headphones.
A method named changeVolume(value) that changes the volume of the headphone to
the value passed into the method
Create a TestHeadPhone class that constructs at least 3 HeadPhone objects. For each of the objects constructed, demonstrate the use of each of the methods. Be sure to use your IDE to accomplish this assignment.
Solution
Here is the HeadPhone.java code for you:
import java.awt.*;
class HeadPhone
{
//Three constants named LOW, MEDIUM and HIGH with values of 1, 2 and 3 to denote the headphone volume.
public static final int LOW = 1;
public static final int MEDIUM = 2;
public static final int HIGH = 3;
//A private int data field named volume that specifies the volume of the headphone. The default volume is MEDIUM.
int volume;
//A private boolean data field named pluggedIn that specifies if the headphone is plugged in. The default value is false.
boolean pluggedIn;
//A private String data field named manufacturer that specifies the name of the manufacturer of the headphones.
String manufacturer;
//A private Color data field named headPhoneColor that specifies the color of the headphones.
Color headPhoneColor;
//A private String data field named headPhoneModel that specifies the Model of the headphones.
String headPhoneModel;
//getter and setter methods for all data fields.
public void setVolume(int vol) { volume = vol; }
public void setPluggedIn(boolean pI) { pluggedIn = pI; }
public void setManufacturer(String mfr) { manufacturer = mfr; }
public void setHeadPhoneColor(Color clr) { headPhoneColor = clr; }
public void setHeadPhoneModel(String mdl) {headPhoneModel = mdl; }
public int getVolume() { return volume; }
public boolean getPluggedIn() { return pluggedIn; }
public String getManufacturer() { return manufacturer; }
public Color getHeadPhoneColor() { return headPhoneColor; }
public String getHeadPhoneModel() { return headPhoneModel; }
//A no argument constructor that creates a default headphone.
public HeadPhone()
{
volume = MEDIUM;
pluggedIn = false;
manufacturer = \"\";
headPhoneColor = Color.BLACK;
headPhoneModel = \"\";
}
//A method named toString() that returns a string describing the current field values of
//the headphones.
public String toString()
{
String output = \"\";
output += \"Volume: \" + volume + \"\ \";
output += \"PluggedIn: \" + pluggedIn + \"\ \";
output += \"Manufacturer: \" + manufacturer + \"\ \";
output += \"Headphone Color: \" + headPhoneColor + \"\ \";
output += \"Headphone Model: \" + headPhoneModel + \"\ \";
return output;
}
//A method named changeVolume(value) that changes the volume of the headphone to
//the value passed into the method
public void changeVolume(int value)
{
volume = value;
}
}

