What will be the output of the following Java program? (Note: file is made in c drive.)
import java.io.*;
class files
{
public static void main(String args[])
{
File obj = new File("/java/system");
System.out.print(obj.canWrite());
System.out.print(" " + obj.canRead());
}
}
import java.io.*;
class files
{
public static void main(String args[])
{
File obj = new File("/java/system");
System.out.print(obj.canWrite());
System.out.print(" " + obj.canRead());
}
}A. true false
B. false true
C. true true
D. false false
Answer: Option D
This Question Belongs to Java Program >> Interfaces And Abstract Classes
A. A contract specifying a set of methods that a class must implement
B. A class that cannot be instantiated
C. A class that contains only static methods
D. A subclass of the Object class
In Java, can a class implement multiple interfaces?
A. Interfaces cannot be implemented by classes
B. Only abstract classes can implement interfaces
C. No, a class can only implement one interface
D. Yes, a class can implement multiple interfaces
What is the purpose of an abstract class in Java?
A. To declare abstract methods
B. To provide a base class with common methods and fields
C. To make a class final
D. To declare abstract methods
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