Which three statements are correct about thread’s sleep method?
Which two forms of abstraction can a programmer use in Java?
What is the result, if the file myfile.txt does not exist?
What is the result?
Which three statements concerning the OO concepts "is-a" and "has-a" are true?
If thread a and thread b are running, but not completing, which two could be occurring?
A valid reason to declare a class as abstract is to:
Which three are true?