How to make a loop over all keys of a HashMap?

Posted by Roman on Stack Overflow See other posts from Stack Overflow or by Roman
Published on 2010-03-23T15:47:03Z Indexed on 2010/03/23 15:53 UTC
Read the original article Hit count: 355

Filed under:

java

|

hashmap

|

iterator

|

loops

I try to do it in the following way:

public String getValue(String service, String parameter) {
    String inputKey = service + ":" + parameter;
    Set keys = name2value.keySet();
    Iterator itr = keys.iterator();
    while (itr.hasNext()) {     
        if (inputKey.equal(itr.next())) {
            return name2value.get(inputKey);
        }
        return "";
    }
}

And I get an error message: cannot find symbol method.equal(java.lang.Object).

I think it is because itr.next() is not considered as a string. How can I solve this problem? I tried to replace Set keys by Set<String> keys. It did not help.

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