CODEWITHSUNDEEP
javastringcompareequals
Simon Kerber
Simon Kerber

Reputation: 43

Java : Equals() does not compare right

if I was not really stuck I wouldnt post here. I am trying to compare 2 Strings with equals(), sadly it never goes through the if function. here is the code :

 public ListElement searchElement(String o) {
        ListElement le = first;
        while (le != null) {
            System.out.println("NAME : " + le.getName() + " : " + o + " " + le.getName().equals(o));
            if (le.getName().equals(o))
            {                               
                return le;
            }
            le = le.next;
        }
        return null;
    }

and here is the output :

NAME : aa : aa   false
NAME : cc : aa   false
NAME : bb : aa   false
NAME : aa : bb   false
NAME : cc : bb   false
NAME : bb : bb   false
NAME : aa : cc   false
NAME : cc : cc   false
NAME : bb : cc   false
NAME : aa : aa   false
NAME : cc : aa   false
NAME : bb : aa   false
NAME : aa : bb   false
NAME : cc : bb   false
NAME : bb : bb   false
NAME : aa : cc   false
NAME : cc : cc   false

Every time I compare 2 equal String, the programm does not see it. Any hints please ?

Upvotes: 0

Views: 287

Answers (1)

bcsb1001
bcsb1001

Reputation: 2907

Each second string has two extra spaces at the end; this can be resolved by changing le.getName().equals(o) to le.getName().equals(o.trim()). The trim() method in String gets rid of any extra spaces at the beginning or end of the given string.

Upvotes: 1

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