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Java Java Data Structures - Retired Organizing Data Interfaces

Posted by Sandy Woods
Sandy Woods
1,082 Points

Treet comparison code

Can someone tell me what they believe this code means? public int compareTo(Object obj) { Treet other = (Treet) obj; // Casting to a treet so that we can access all of those values if(equals(other)) { return 0;

1 Answer

Todd Farr
Todd Farr
9,547 Points
Todd Farr
Todd Farr
9,547 Points

Sandy, I've added comments to each line below 

//we are overriding the compareTo() method here for use in our Class
public int compareTo(Object obj) { 

    // Since we are passing in an object we have to Typecast it to a Treet
    // We need to do this so that we can compare it to another Treet
    Treet other = (Treet) obj;  

    //Then we do a check for if this Treet equals other which has been typecasted to a Treet
    if(equals(other)) { 

        // if they are equal we return 0
        return 0;
    }

I hope this helps and makes sense!