[android help] Problems with ArrayList<HashMap<String,String>> and IF-STATEMENT

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I have a Array List with HashMap deviceDataCollection = new ArrayList>(); I have to retrieve some data from this Array e compare using an IF-STATMENT, like the code below: String DeviceType = deviceDataCollection.get(position).get("var").toString(); //it returns a string: lamp if (DeviceType == "lamp") { // do something } The problem is: I can't get enter the IF-STATEMENT. I'm sure the values are exact the same. I don't know what to do. Thanks. asked 18 mins ago

	When comparing Strings use equals() So in your conditional it should be DeviceType.equals("lamp") answered 16 mins ago

	When you compare reference types in Java (and Android) you need to use the .equals() method: if (DeviceType.equals("lamp")) { // do something } == determines equality by when something is in memory, .equals() will consider its value. answered 16 mins ago Hunter McMillen 9,12011135

	Use equals("lamp") or equalsIgnoreCase("lamp") method to co0mpare two Strings. if (DeviceType .equals("lamp")) { // do something } answered 15 mins ago

	Try this: if (DeviceType.equals("lamp")) { // do something } Strings are compared using equals function and not ==. answered 10 mins ago

Use if ("lamp".equals(DeviceType)) { //do something } The operator, ==, tests to see if two object reference variables refer to the exact same instance of an object. The method, .equals(), tests to see if the two objects being compared to each other are equivalent -- but they need not be the exact same instance of the same object. http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html Check the equals method in the link above answered 14 mins ago

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