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Java Java Data Structures Getting There Class Review

Sean Flanagan
Sean Flanagan
33,235 Points
Posted by Sean Flanagan
Sean Flanagan
33,235 Points

Problem with closing parenthesis

Hi there.

My Java program won't work - again.

Apparently a line in my Example.java containing just a closing parenthesis is to blame.

I'll post the code below:

import java.util.Date;

import com.teamtreehouse.Treet;

public class Example {
  public static void main(String []args) {
    Treet treet = new Treet(
      "craigsdennis",
      "Feeling overwhelmed by learning to #code?" + 
      "Try out this thought hack I whipped up:  http://buff.ly/1LjAZrJ  #development #webdev",
      new Date(1437084178)
    )
    System.out.printf("This is a new Treet: %s %n", treet);
  }
}

The repl is off. The error message is:

Example.java:12: error: ';' expected                                                  
    )                                                                                 
     ^

Once again, I'd appreciate any help.

Sean :-)

3 Answers

Christopher Augg
Christopher Augg
21,223 Points
Christopher Augg
Christopher Augg
21,223 Points

Hello Sean,

Looks like the ; is missing: 

                     Treet treet = new Treet(
              "craigsdennis",
              "Feeling overwhelmed by learning to #code?" + 
              "Try out this thought hack I whipped up:  http://buff.ly/1LjAZrJ  #development #webdev",
              new Date(1437084178)
              );  <----------- 

                     System.out.printf("This is a new Treet: %s %n", treet);

Let me know if this helps man

Regards,

Chris

Sean Flanagan
Sean Flanagan
33,235 Points
Sean Flanagan
Sean Flanagan
33,235 Points

Hi Chris. Thanks for your efforts. I've changed Example.java to:

import java.util.Date;

import com.teamtreehouse.Treet;

public class Example {
  public static void main(String []args) {
    Treet treet = new Treet(
      "craigsdennis",
      "Feeling overwhelmed by learning to #code?" + 
      "Try out this thought hack I whipped up:  http://buff.ly/1LjAZrJ  #development #webdev",
      new Date(1437084178)
    );
    System.out.printf("This is a new Treet: %s %n", treet);
  }
}

I got this error message:

Example.java:7: error: constructor Treet in class Treet cannot be applied to given types;        
    Treet treet = new Treet(                                                                     
                  ^                                                                              
  required: no arguments                                                                         
  found: String,String,Date                                                                      
  reason: actual and formal argument lists differ in length                                      
1 error

I've forked my work space and taken a snapshot.

I would appreciate any further help - sorry to be a nuisance.

Sean

Christopher Augg
Christopher Augg
21,223 Points
Christopher Augg
Christopher Augg
21,223 Points

Sean,

No problem... Your Example.java is totally fine now. It is complaining about your Treet constructor within your Treet class. Did you pass the arguments into the Treet constructor with something similar to:

        public Treet(String theFirst, String theSecond, Date theDate) {
        //initialize 
    }


//Please post your a link to your snapshot if that is ok.

//Regards,

//Chris
Christopher Augg
Christopher Augg
21,223 Points
Christopher Augg
Christopher Augg
21,223 Points

Hello Sean,

Yep, it is your Treet class that is the issue. You have an empty tree class. You will need to complete it before it can be instantiated within your Example class. Do you know where this class is under the com ? Here are some hints. I hope they help.

Regards,

Chris

     package com.teamtreehouse;

     public class Treet {
          //Do you need any variable to hold values passed into the constructor?
          //How many arguments do you need to pass to the constructor? What will be their types?
         //Do you need to override the toString method?
     }
Harry James
Harry James
14,780 Points
Harry James
Harry James
14,780 Points

Christopher Augg is right here - you need to fill in the constructor for your Treet class.

Also +1 to Christopher for the hints - they're awesome :)

You learn so much better by just being given hints than by someone just posting the correct code without an explanation :D

Edit: Also, I don't want to take credit for Christopher's work - just wanted to give kudos :)

Sean Flanagan
Sean Flanagan
33,235 Points
Sean Flanagan
Sean Flanagan
33,235 Points

Here's what I've done since:

package com.teamtreehouse;

import java.util.Date;

public class Treet implements Comparable {
  private String mAuthor;
  private String mDescription;
  private Date mCreationDate;

  public Treet(String author, String description, Date creationDate) {
    mAuthor = author;
    mDescription = description;
    mCreationDate = creationDate;
  }
  @Override
  public String toString() {
    return "Treet: \"" + mDescription + "\" - @" + mAuthor;
  }

  public String getAuthor() {
    return mAuthor;
  }

  public String getDescription() {
    return mDescription;
  }

  public Date getCreationDate() {
    return mCreationDate;
  }

  public String[] getWords {
    return mDescription.toLowerCase().split("[^\\w#@']+");
  }
}

Thank you both. :-)