level 0 : 01 Step by step interview question to crack the interview.

1. what do you mean by programming language?
2. what is low level language and high level language? what do u think java is?
3. what type of software we can developed by using java language.
4. Is java a platform independent and how a language become platform independent?
5. What do you mean by Compiler? What is name of java compiler?
6. What is role of Compiler?
7. what do u mean by keyword in java . write a simple program showing use of keyword?
8. what is literal in java? write a simple program to sum literals.
9. what do u mean by identifier in java . keyword and literals are treated as identifier in java?
10. can we use keyword as identifier in java ?
11. what is class in java can we use class name as identifier in java?
12. is null ,true and false are a keyword.
13. System.out.println(null);
14. System.out.println(true);
15. System.out.println(false);
16. Different between System.out.println() and System.out.print();
17. what will be the output of this code.
    

    class callkr1{
     public static void main (String args[]){
     int const=20;
     int goto=30;
     System.out.println(const+goto);
     }
    }

18. what will be the output of this code.

    
    
    public class callkr_q1 {
    
     public static void main (String args[]){
     int String=20;
     System.out.println(String); // Line 1
     System.out.println(new String() +" I found answer of this question");//Line 2
     
      }
    }
    
    

19. what will be the output of this code.

    public class callkr_q1 {
    
     public static void main (String args[]){
      int String=20;
      System.out.println(String); // Line 1
      System.out.println(new String() +" I found answer of this question");//Line 2
     
      }
    }
    

20. what will be the output of this code.
    

    public class callkr_q2 {
     static int String=123;
        public static void main(String[] args) {
      System.out.println(callkr_q2.String); // Line 1
    
     }
    
    }