Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java Java Data Structures - Retired Getting There Class Review

Aakash Srivastav
seal-mask
.a{fill-rule:evenodd;}techdegree
Aakash Srivastav
Full Stack JavaScript Techdegree Student 11,638 Points

constructors

Why does Craig doesn't use "this" keyword in the constructor? i,e this.mDescription = description; this.mAuthorName= authorName; this.mCreationDate = creationDate;

2 Answers

Samuel Ferree
Samuel Ferree
31,722 Points

If the variable names are different for the local and member variables, like mDescription and description, there is no need to use this

public Thing(int variable)
{
    mVariable = variable // Different names, 'this' not needed.
}

public Thing(String mString)
{
    this.mString = mString; //same name, 'this' needed in order to avoid ambiguity.
}