ListSearch in Linkedlist

Question

grisha83 26 Junior Poster in Training

15 Years Ago

My method is not working for some reason, even though i have done in exactly the same way the books showed.
Could you please take a look at it and let me know what went wrong?
Thank you
P.S. I tried to use DEBUG technique and it seems that the method doesn't even go through the list.

public static IntNode listSearch(IntNode head, int target) {

        IntNode cur;

        for (cur = head; cur != null; cur = cur.link) 
            if (target == cur.data){
                System.out.println("DEBUG" + cur.data);
            }
            else
              System.out.println("DEBUG" + null); 
        return null;

}

this is how i call my method in main my.listSearch(null, 21); // method does not work

java

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shantechi -1 Newbie Poster · Answer 1 · 2009-06-03T10:19:37+00:00

My method is not working for some reason, even though i have done in exactly the same way the books showed.
Could you please take a look at it and let me know what went wrong?
Thank you
P.S. I tried to use DEBUG technique and it seems that the method doesn't even go through the list.
public static IntNode listSearch(IntNode head, int target) {

        IntNode cur;

        for (cur = head; cur != null; cur = cur.link) 
            if (target == cur.data){
                System.out.println("DEBUG" + cur.data);
            }
            else
              System.out.println("DEBUG" + null); 
        return null;

}
this is how i call my method in main my.listSearch(null, 21); // method does not work

As per my knowledge, I think you should not check objects against null.... Problem with for loop..

grisha83 26 Junior Poster in Training · Answer 2 · 2009-06-03T12:08:41+00:00

As per my knowledge, I think you should not check objects against null.... Problem with for loop..

You are right!