How-to articles, tricks, and solutions about JAVA
Difference between & and && in Java?
In Java, the & operator is a bitwise AND operator, and the && operator is a logical AND operator.
Difference between break and continue statement
In Java, the break and continue statements are used to control the flow of a loop.
Difference between HashMap, LinkedHashMap and TreeMap
In Java, HashMap, LinkedHashMap, and TreeMap are all implementations of the Map interface.
Does java.util.List.isEmpty() check if the list itself is null?
No, the isEmpty() method of the java.util.List interface does not check if the list itself is null.