What will be the output of the following Java program?
import java.net.*;
class networking
{
public static void main(String[] args) throws Exception
{
URL obj = new URL("https://www.example.com/javamcq");
URLConnection obj1 = obj.openConnection();
int len = obj1.getContentLength();
System.out.print(len);
}
}
Note: Host URL is having length of content 127.
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Which of these method of MimeHeader is used to return the string equivalent of the values stores on MimeHeader?
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Which of these is an instance variable of class httpd?
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Which of these exceptions is thrown by URL class's constructors?
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What will be the output of the following Java program?
import java.net.*;
class networking
{
public static void main(String[] args) throws MalformedURLException
{
URL obj = new URL("https://www.example.com/javamcq");
System.out.print(obj.getHost());
}
}
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Which of these class must be used to send a datagram packets over a connection?
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Which of these process occur automatically by the java runtime system?
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What will be the output of the following Java program?
import java.net.*;
class networking
{
public static void main(String[] args) throws MalformedURLException
{
URL obj = new URL("https://www.example.com/javamcq");
System.out.print(obj.toExternalForm());
}
}
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Which of these methods of DatagramPacket is used to find the length of byte array?
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Which of these is a bundle of information passed between machines?
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Which of these is method of ObjectOutput interface used to write the object to input or output stream as required?
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What will be the output of the following Java program?
import java.io.*;
class streams
{
public static void main(String[] args)
{
try
{
FileOutputStream fos = new FileOutputStream("serial");
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeFloat(3.5);
oos.flush();
oos.close();
}
catch(Exception e)
{
System.out.println("Serialization" + e);
System.exit(0);
}
try
{
FileInputStream fis = new FileInputStream("serial");
ObjectInputStream ois = new ObjectInputStream(fis);
ois.close();
System.out.println(ois.available());
}
catch (Exception e)
{
System.out.print("deserialization");
System.exit(0);
}
}
}
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Which of these methods of httpd class is used to read data from the stream?
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Which of these package contains classes and interfaces for networking?
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What will be the output of the following Java program?
import java.io.FileOutputStream;
public class FileOutputStreamExample
{
public static void main(String args[])
{
try
{
FileOutputStream fout=new FileOutputStream("D:\\example.txt");
String s="Welcome to India.";
byte b[]=s.getBytes();//converting string into byte array
fout.write(b);
fout.close();
System.out.println("Success");
} catch(Exception e){System.out.println(e);}
}
}
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What will be the output of the following Java program?
import java.io.*;
class serialization
{
public static void main(String[] args)
{
try
{
Myclass object1 = new Myclass("Hello", -7, 2.1e10);
FileOutputStream fos = new FileOutputStream("serial");
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(object1);
oos.flush();
oos.close();
}
catch(Exception e)
{
System.out.println("Serialization" + e);
System.exit(0);
}
try
{
Myclass object2;
FileInputStream fis = new FileInputStream("serial");
ObjectInputStream ois = new ObjectInputStream(fis);
object2 = (Myclass)ois.readObject();
ois.close();
System.out.println(object2);
}
catch (Exception e)
{
System.out.print("deserialization" + e);
System.exit(0);
}
}
}
class Myclass implements Serializable
{
String s;
int i;
double d;
Myclass (String s, int i, double d)
{
this.d = d;
this.i = i;
this.s = s;
}
}
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If member does not implement serialization, which exception would be thrown?
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How many bits are in a single IP address?
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Which of these transfer protocol must be used so that URL can be accessed by URLConnection class object?
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What will be the output of the following Java code?
import java.net.*;
class networking
{
public static void main(String[] args) throws MalformedURLException
{
URL obj = new URL("https://www.example.com/javamcq");
System.out.print(obj.getProtocol());
}
}
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