title: Java - changing data fields?
body: <p>There are two things I need help with but I'm having a hard time figuring out. They are listed below - any assistance is greatly appreciated.</p>
  
  <p>1) I need to add a method that prompts the user to enter an int (1-3) to change the volume (default set to 2). I'm really having trouble figuring out how to make this work.</p>
  
  <p>2) I need to add a similar method that prompts the user to enter an int (1 or 2) to plug the head phones in.</p>
  
  <p>Here's my code; one is the test class:</p>
  
  <pre><code>//Open Package
  package headphone_wk6;
  
  //Import scanner since this will require user input
  import java.util.Scanner;
  
  
  // Creat class for headphones
  public class HeadPhone_WK6 {
  
  //Call scanner
  Scanner stdin = new Scanner(System.in);
  
  //Initialize input variable
  int Input;
  
  //Declare constant Variables
  public static final int LOW = 1;
  public static final int MEDIUM = 2;
  public static final int HIGH = 3;
  
  //Declare Private variables
  private int volume;
  private boolean pluggedIn;
  private String manufacturer;
  private String headPhoneColor;
  
  //Declare Strings
  String pluggedInStat;
  String volumeNow;
  
  
  // Constructor for class
  public HeadPhone_WK6(int volume, boolean pluggedIn, String manufacturer, String headPhoneColor) {
      this.volume = volume;
      this.pluggedIn = pluggedIn;
      this.manufacturer = manufacturer;
      this.headPhoneColor = headPhoneColor;
  }
  
  // Default Constructor for default settings
  public HeadPhone_WK6() {
      volume = MEDIUM;
      pluggedIn = false;
      manufacturer = "";
      headPhoneColor = "";
  }
  
  // setVolume
  public void setVolume(int volume) {
      this.volume = volume;
  }
  
  // getVolume
  public int getVolume() {
      if (volume == 1) {
          volumeNow = "LOW";
      }
      else if (volume == 2) {
          volumeNow = "MEDIUM";
      }
      else {
          volumeNow = "HIGH";
      }
      return volume;
  }
  
  
  // setPluggedIn
  public void setPluggedIn(boolean pluggedIn) {
      this.pluggedIn = pluggedIn;   
  }
  
  // getPluggedIn
  public boolean getPluggedIn() {
      if(pluggedIn == true) {
          pluggedInStat = "Plugged In";
      }
      else {
          pluggedInStat = "Not Plugged In";
      }
  
      return pluggedIn;
  }
  
  
  // setManufacturer 
  public void setManufacturer(String manufacturer) {
      this.manufacturer = manufacturer;
  }
  
  // getManufacturer
  public String getManufacturer() {
      return manufacturer;
  }
  
  // setHeadPhoneColor
  public void setHeadPhoneColor(String headPhoneColor) {
      this.headPhoneColor = headPhoneColor;
  }
  
  // getHeadPhoneColor
  public String getHeadPhoneColor() {
      return headPhoneColor;
  }
  
  // method to create string
  public String toString() {
  
      boolean phonesPluggedIn = this.getPluggedIn();
      String phoneManufacturer = this.getManufacturer();
      String phoneColor = this.getHeadPhoneColor();
      String currentVolume = this.volumeNow;
  
      //Build String for characteristics of phones
      StringBuilder characteristics = new StringBuilder();
      characteristics.append(String.format("\nThe Head Phone Manufacturer "
              + "is: %s", phoneManufacturer));
      characteristics.append(String.format("\nThe Color of the Head Phone Set "
              + "is: %s", phoneColor));
      characteristics.append(String.format("\nThe Head Phones are Currently: "
              + " %s", phonesPluggedIn));
      characteristics.append(String.format("\nThe Head Phone Volume is "
              + "Currently Set on: %s", currentVolume));
  
      //return string for characteristics
      return characteristics.toString();
  
  
  }    
  </code></pre>
  
  <p>}</p>
  
  <pre><code>package headphone_wk6;
  
  //Import scanner since this will require user input
  import java.util.Scanner;
  
  //Test class for head phone
  public class HeadPhone_WK6_Test {
  
  //Command line arguments
  public static void main(String[] args) {
  
      //Initialize input variable
      int Input;
  
      //Call scanner
      Scanner stdin = new Scanner(System.in);
  
      HeadPhone_WK6 bestPair = new HeadPhone_WK6(2, false, "SONY", "BLUE");
      HeadPhone_WK6 worstPair = new HeadPhone_WK6(2, false, "BOSE", "BLACK");
      HeadPhone_WK6 decentPair = new HeadPhone_WK6(2, false, "RCA", "ORANGE");
  
      int bestPairVolume = bestPair.getVolume();
      boolean bestPairPluggedIn = bestPair.getPluggedIn();
      String bestPairManufacturer = bestPair.getManufacturer();
      String bestPairHeadPhoneColor = bestPair.getHeadPhoneColor();     
      String bestPairVolumeNow = bestPair.volumeNow;
      String bestPairPluggedInStat = bestPair.pluggedInStat;
  
      int worstPairVolume = worstPair.getVolume();
      boolean worstPairPluggedIn = worstPair.getPluggedIn();
      String worstPairManufacturer = worstPair.getManufacturer();
      String worstPairHeadPhoneColor = worstPair.getHeadPhoneColor();
      String worstPairVolumeNow = worstPair.volumeNow;
      String worstPairPluggedInStat = worstPair.pluggedInStat;
  
      int decentPairVolume = decentPair.getVolume();
      boolean decentPairPluggedIn = decentPair.getPluggedIn();
      String decentPairManufacturer = decentPair.getManufacturer();
      String decentPairHeadPhoneColor = decentPair.getHeadPhoneColor();
      String decentPairVolumeNow = decentPair.volumeNow;
      String decentPairPluggedInStat = decentPair.pluggedInStat;
  
      //Introduce HeadPhone helper
      System.out.print("Hi there! Let's have you try a pair of head phones "
              + "on and we'll see what you think of them! \nStart by choosing a "
              + "random pair of head phones. To do this, enter 1, 2, or 3: ");
  
      //Get user input for random pair of headphones
              Input = stdin.nextInt();
  
              //Loop for random headphone selection
              if (Input == 1){
  
                  //echo user input
                  System.out.println("You have chosen the best pair of "
                          + "headphones! Here is a list of the characteristics: ");
  
                  System.out.println(bestPair.toString());
  
              //End if
              }
  
              else if (Input == 2){
                  System.out.println("You have chosen the worst pair of "
                          + "headphones. Here is a list of the characteristics: ");
  
                  System.out.println(worstPair.toString());
  
  
              //End If   
              }
  
              else if(Input == 3){
                  System.out.println("You have chosen a decent pair of "
                          + "headphones. Here is a list of the characteristics:");
  
                 System.out.println(decentPair.toString());
  
              //End If    
              }
  
              else{ 
                  System.out.println("You have expressed that you want to see "
                          + "the default pair of headphones. They are the "
                          + "decent pair! Here's a list of the characteristics:");
  
                  System.out.println(decentPair.toString());
  
              }
  
  
  
  
  
  
  }  
  </code></pre>
  
  <p>}</p>