Core Java : Experts


1. Which methods is not used while Serialization and DeSerialization in java?




2. Which methods is used to make raw MIME formatted string?




3. What will be the output of the code ________?


    import java.util*; 

        class test
        
            {

                public static void main(String args[]) 
                
                    {

                        ArrayLitt obj = new ArrayList();

                        obj.add("P");

                        obj.add("Q");

                        obj.add("R");

                        obj.add(1, "S");

                        System.out.println(obj);        

                    }

            }



4. What will be the output of the code ________?


    import java.util*; 

        class Output
        
            {

                public static void main(String args[]) 
                
                    {

                        ArrayList obj = new ArrayList();

                        obj.add("X");

                        obj.add(0, "Y");

                        System.out.println(obj.size());       

                    }

            }



5. What exception is thrown by parseInt() method




6. What will be the output of the code ________?


    class multithreaded

        {

            public static void main(String args[])
            
                {

                    Thread t = Thread.currentThread();

                    t.setName("New Thread");

                    System.out.println(t);   

                }
	}



7. What will be the output of the code ________?


    class multithreaded

	    {

            public static void main(String args[])
            
	        {

                Thread t = Thread.currentThread();
                
                System.out.println(t.isAlive());    
                    
            }
            
	    }



8. What will be the output of the code if the given input is 'abcqfghqbcd'?


    class Input_Output
    
        {

            public static void main(String args[]) throws IOException

            {	 

                char c;

                BufferedReader obj = new BufferedReader(new InputStreamReader(System.in));

                do

                    {

                        c = (char) obj.read();

                        System.out.print(c);

                    } while(c != 'q');
            }
        }



9. What will be the output of the code ________?


    class output

	    {

                public static void main(String args[])

	        {

                    StringBuffer c = new StringBuffer("Hello");
                    
                    System.out.println(c.length());
                
                }
            
	    }



10. What will be the output of the code ________?


    class output

        {

            public static void main(String args[])

                {

                    StringBuffer s1 = new StringBuffer("Hello");

                    StringBuffer s2 = s1.reverse();

                    System.out.println(s2);

                }	    
        }