50 Java Language Computer Knowledge Short Answer Questions - One Word CK bits || sweetymyworld ||

 50  Java Language Computer Knowledge 

Interview Asking for 

Short Answer Questions  :-

1. Who is invented by java programming ? James Gosling 
2. Java is a independent or dependent programming language ? Independent 
3. Use of pointers is a java feature ? Yes or no ? No
4. Java is case sensitive ? True 
5. Java was publicly released in ___? 27-05-1995
6. Java is Secure ? Yes or no ? Yes 
7. In java ,System class is defined in ___?  java.lang package 
8. In java , Scanner class defined in ___? java.util package 
9. In java, Scanner class is used to take input at ? Run-time 
10. Which Steam is used for input ? System.in
11. Which Stream is used for output ? System.out
12. What is the extension of java code files? .java
13. What us the extension of compiled java classes ? .class
14. Keyword is used for a variable name in java ? Yes or no ? No
15. Which of the following is a type of polymorphism in java programming programming ? Compile time polymorphism 
16. Which of the following package is used for text formatting in java programming language ? java.text
17. Which component is used to compile , debug and execute the java  programs ? JDK
18. Which Scanner class method is used to read integer value ? nextInt()
19. Which Scanner class method is used to reqd String value ? next() and nextLine()
20. How many types if Data type in java ? 2
21. How many primitive Data type in java ? 8
22. What is the size of char Data type ? 2 bytes
23. What is the default value of boolean Data type ? False 
24. Which of the following is smallest integer Data type ? Byte 
25. Which of the following Data types  comes under floating Data types ?double & float 
26. What is the range of byte data type is ? -128 to +127
27. How many loops are their in java ? Three
28. What is the purpose for using loop ? For repeatation 
29. Which loop always execute atleast once, even condition false ? do while loop 
30. Do while loop is also  as ___loop ? Exit control 
31. Which of the following loops are entry controlled loop ? While and for loop
32. Which loop is best suitable for Arrays in java ? For - each loop
33. Assignment operator is not a part of binary operator ? Yes
34. which operator is used for alternate of if-else statement ? Ternary operator 
35. Which of the following is arthmetic operators are ? +,-,*,%,/,
36. Relational operator is used for ? Comparison 
37. How many types of logical operators ? 3
38. Which of the following is bitwise operator ? &  
39. What is the default value of static variable ? 0
40. A variable which is Declared inside the method called ____? Local variable 
41. Which of these selection statements test only for Equality ? a)if b)switch c)if & switch d)None of these answer is switch
42. If statement execute or skip statement depending on the _____expression ? Boolean 
43. Which one is a valid declaration of boolean datatype ? book b=false;
44. What is the default data type of a decimal value in java ? double 
45. In java , Scanner is pre- defined ? Class
46. What is tbe reason of portability & security of java ? byte code 
47. What does the expression double n=1/0; return ? Infinity 
48. Which of these class is a superclass of every class in java ? object class 
49. Void is not to Access modifier  ? Yes or no ? yes 
50. Which of these are conditional statements in java  ? if()

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50 Computer Knowledge Short Answer Questions - One Word CK bits || sweetymyworld ||