您应该了解下面的链接,以了解OOP和Java的一些了解: https://www.tutorialspoint.com/java/ http://www.javatpoint.com/java-oops-concepts.智能推荐Qt for android如何在静态java类中调用非静态方法 一般正常情况开发下,在java的静态类方法中,调用一个非静态方法是会报错,编译不通过的,但是在Qt调用Java正常函数...
TreeSet Map-Interfaces A map contains values based on the key i.e. key and value pair.Each pair is known as an entry.Map contains only unique elements.. A map cannot contain duplicate keys. There are three main implementations of Map interfaces: HashMap, TreeMap, and LinkedHashMap. Hash...