Which of these classes defined in java.io and used for file-handling are abstract?A. InputStreamB. PrintStreamC. ReaderD. FileInputStreamE. FileWriter B and D A, B and E Only C Only A A and C TRUE ANSWER : ? YOUR ANSWER : ?
System class is defined in ................. None of these java.util package java.io package java.lang package java.awt package TRUE ANSWER : ? YOUR ANSWER : ?