What will be the output of the following Java program?
import java.io.*;
class Chararrayinput
{
public static void main(String[] args)
{
String obj = "abcdef";
int length = obj.length();
char c[] = new char[length];
obj.getChars(0,length,c,0);
CharArrayReader input1 = new CharArrayReader(c);
CharArrayReader input2 = new CharArrayReader(c, 0, 3);
int i;
try
{
while ((i = input1.read()) != -1)
{
System.out.print((char)i);
}
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
import java.io.*;
class Chararrayinput
{
public static void main(String[] args)
{
String obj = "abcdef";
int length = obj.length();
char c[] = new char[length];
obj.getChars(0,length,c,0);
CharArrayReader input1 = new CharArrayReader(c);
CharArrayReader input2 = new CharArrayReader(c, 0, 3);
int i;
try
{
while ((i = input1.read()) != -1)
{
System.out.print((char)i);
}
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}A. abc
B. abcd
C. abcde
D. abcdef
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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