Java creating instance of a map object
The quick way of putting entries in a Map just created is the following (let me use a HashMap 'cause I like them):
Map<String,String> temp = new HashMap<String,String>(){{ put(colName, data);}};Note all those parenthesis with a closing semicolon!
While it's true that in Java7 you can generally use the diamond operator and write something like this Map<String,String> temp = new HashMap<String,String>();, this does not work when putting elements in the Map inline. In other words, the compiler with yell at you if you try the following (don't ask me why):
Map<String,String> temp = new HashMap<>(){{ put(colName, data);}};