Easy
It is possible to add to a List<Integer>
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How many times is the condition `(a++ < 15)` evaluated in the following code?
```java
int a = 3;
while (a++ < 15) {
if ((a++ % 5) == 0)
break;
}
```12
A monitor in Java12
How many instance of Integer cannot be freed from memory?11
What "design pattern" makes it possible to offer a means of treating the elements of a tree without worrying about the course?12
Serialization can be customized with the Externalizable interface10
What is the error message when you try to serialize a class that does not implement Serializable?12
What does the final keyword mean in front of a method in Java?