Every Java Programmer is familiar with NullPointerException. It can crash your code. And it is very hard to avoid it without using too many null checks. Java 8 has introduced a new class Optional in ...

Using Java 5, our example would look something like what you see in Listing 3. Listing 3. Using generics and the enhanced for-loop to iterate over a list of strings ...

Create a Java method in Designer and specify "indocs" as a doctype list as input param and "outdocs" as a doctype list as output params. Copy the code of filterSample into the method. Adjust the code ...