Hard
Besides java.lang.Object, is there a superclass common to Integer, Long, Byte, BigDecimal and Short?
Author: Thomas De verdièreStatus: PublishedQuestion passed 3216 times
Edit
12
Serialization can be customized with the Externalizable interface12
How many instance of Integer cannot be freed from memory?12
What does the final keyword mean in front of a method in Java?12
A monitor in Java11
What is the error message when you try to serialize a class that does not implement Serializable?16
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;
}
```11
What "design pattern" makes it possible to offer a means of treating the elements of a tree without worrying about the course?