I have a class that I want to use to store “properties” for another class. These properties simply have a name and a value. Ideally, what I would like...
Why do generics in Java work with classes but not with primitive types? For example, this works fine: List<Integer> foo = new ArrayList<Integer>(); but this is not allowed: List<int>...
I’m reading ‘Professional Javascript for Web Developers’ Chapter 4 and it tells me that the five types of primitives are: undefined, null, boolean, number and string. If null is...
Character.getNumericValue(c) The java.lang.Character.getNumericValue(char ch) returns the int value that the specified Unicode character represents. For example, the character '\u216C' (the roman numeral fifty) will return an int with a value of 50. The letters A-Z...
You can use the getClass() method to get the type of the object you are using: Object obj = null; obj = new ArrayList<String>(); System.out.println(obj.getClass()); obj = "dummy"; System.out.println(obj.getClass()); obj =...
Java equivalent of unsigned long long?