JAVA 2019

1. which of these is a wrapper around everything associated with a reply from an http server?

2. Java Allows programmers to develop the following :

3. Which of the following is not a mail server ?

4. Give The Abbreviation for AWT:

5. Which of the Method of class string is used to obtain a length of string object 😕

6. What will be the output of this program is :

class string-demo

{

public static void  main(String args[])

{

char chars[]={‘a’,’b’,’c’};

String S=new String (chars);

System.out.println(S);

}

}

7. Size of byte data type is :

8. Which of the coding type is used for data type characters in java ?

9. & operator can return :

10. Literals in java must be appended by which of these ?

11. Which of these can be overloaded ?

12. output of the code :

String S1=”yes”;

String S2=”yes”;

String S3=new String (S1);

13. What will be the result of expression 13&25?

14. Which of these is a valid method declaration?

15. What is the type and value of following expression?

-4+1/2+2*-3+5.0;

16. Which of the variable declaration not compile in java program ?

17. In java objects are passed as :

18. Which is not a searching technique ?

19. Father of Java programming is :

20. Which provides run Time environment for java byte code to be executed ?

21. Which one of the following is a java keyword?

22. Which of the following is an access modifier ?

23. Full Form of JVM is :

24. All syntax Error are Called :

25. Which of these is not used to take input from use in java?

26. Subclass of which following class can not be created ?

27. Who invented java language ?

28. Which of these is converted into Machine code by java interpreter?

29. Which of valid declaration of a float ?

30. Which symbol is used to denote a multiline comment in java ?

31. It is process of removing error found in the program:

32. Order of three top level elements of java source file is :

33. Which of these is a part of Abstract Window toolkit ?

34. server side script is :

35. server side script is :

36. Which one is a valid declaration of boolean ?

37. How to sort an array?

38. What will this code print ?

int arr[]=new int [5];

System.out.println(arr);

39. Which of these have highest precedence ?

40. What would be behaviour if the constructor has a return type ?

41. What will S2 contain after following lines of code ?

String S1=”one”;

String S2=S1.concat(“two”);

42. We can not create subclass of ?

43. Which of the following package is used to create and implement applet ?

44. life cycle of thread is controlled by :

45. Full Name of JDBC is :

46. Which will legally declare construct and initialize an array?

47. The Minimum value of char type variable is :

48. Which one is not Supported by OOP?

49. Java Program are :

50. When a method is made static , What it can not use ?

51. In Java , main () method returns a value of type :

52. Which of the following is not a Wrapper class?

53. Evaluate the value of expression ?

6-2+10%4+7

54. The && and || operators :

55. Which of the following is used with switch statement ?

56. What is the valid data type for variable “a” to print “Hello World”?

1. Switch (a)
2. {
3. System.out.println(“Hello World”);
4. }

57. Which of the following is not a decision making statement ?

58. Which of the following is not a valid jump statement in java ?

59. The class at the top of the AWT Hierarchy is :

60. Frame control Act as a :

61. The ____is a tool for both the input and output purpose.

62. Which of these is long data type leteral ?

63. What is the value stored in x in following lines of code ?

int x,y,z;

x=0;

y=1;

x=y=z=8;

64. When does method overloading determined ?

65. What is the range of short data type in java?

66. Which of the following has a method named flush ()?

67. File class is included in which package ?

68. Arrange in sequence from lower to higher :

1. terabyte
2. megabyte
3. nibble
4. yotabyte

69. What is the default value of float variable ?

70. Operators having same priority are evaluated from :

71. If a variable is declared final,it must include ____value.

72. In Java Program ,package declaration ______import statements.

73. Which of the following is not the  java primitive type ?

74. Java Programs perform I/O Through :

75. How Many Time does the following code segment execute :

1. int x=1,y=10,z=1;
2. do{y-;x++;y-=2;y=;z++}while(y>1&&z<10);

76. Command to execute compiled java program is :

77. The new operator dynamically allocates ____for an object and return a reference to it .

78. Class is a ______entity.

79. Operator that concatenates two strings :

80. ____is valid for IF statement.

81. A _____object can not be modified after it is created .

82. Which of the following denotes a javadoc comment ?

83. Which of the following is an assignment operator ?

84. Which of the following will produce a value of 22 if x =22.9?

85. full form of HTTP is :

86. Consider the code segment

“x=(a>b)?a:b”,

then the value of x is 19,if a=19 and b=12:

87. Each method in a java class must have a unique name :

88. Which of the following is used to convert string to number in java program ?

89. Method overloading is one of the way that java supports___

90. What is the extension of compiled java program ?

91. What will be the output of the following code ?

byte x=64,y;

y=(byte)(x<<2);

system.out.println(y);

92. If m  and n are int type variables ,what will be the result of expression m%n when m=5 and n=2?

93. Java has its origin in :

94. What would happen if “string [] args ” is not included as argument in the main method ?

95. Which of the following is not mandatory in variable declaration ?

96. All java classes are derived from:

97. Full Form of ASP :

98. In java ActiveX Controls can run on:

99. Which language is usually considered for client side scripting ?

100. Which is the container that contains Title Bar and can have Menu Bar it can have other components like button, text field etc ?

101. AWT is used for GUI programming :