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Java Java Data Structures 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!