java Interview Questions| Java @ IDN Knowledge Xchange (KEP)

S.No	Question	Posted By	Date	Answers	Views
S.No	Question	Posted By	Date	Answers	Views
1	Can a class have an interface?	SANJAY	Jul 22, 2021 09:03	0	60
2	Can an exception be rethrown?	ROHAN	Aug 07, 2021 11:29	1	34
3	Can finally block be used without a catch?	ROHAN	Jul 05, 2021 14:12	0	52
4	Can I import same package or class twice? Will the JVM load the package twice at runtime?	RANJIT	Jul 02, 2021 13:34	1	59
5	Can I import same package/class twice? Will the JVM load the package twice at runtime?	RANJIT	Sep 07, 2021 00:56	0	14
6	Can the Interface be final?	ROHAN	Apr 30, 2021 10:20	1	106
7	Can there be an abstract method without an abstract class?	ROHAN	Apr 27, 2021 10:46	1	89
8	Can we change the scope of the overridden method in the subclass?	RANJIT	Mar 11, 2021 11:44	1	134
9	Can we declare a constructor as final?	RANJIT	Apr 08, 2021 12:56	2	104
10	Can we declare an interface as final?	JOSHUA	Apr 08, 2021 12:57	0	94
11	Can we declare the static variables and methods in an abstract class?	SANJAY	Feb 20, 2021 10:05	1	106
12	Can we define private and protected modifiers for the members in interfaces?	SANJAY	Aug 17, 2021 04:20	1	39
13	Can we execute a program without main() method?	RANJIT	Mar 08, 2021 12:39	1	102
14	Can we make constructors static?	JOSHUA	Feb 20, 2021 09:56	1	114
15	Can we make the abstract methods static in Java?	VAMSI	Feb 20, 2021 10:02	1	111
16	Can we modify the throws clause of the superclass method while overriding it in the subclass?	VAMSI	Mar 12, 2021 11:15	1	138
17	Can we overload the constructors?	SANJAY	Feb 15, 2021 10:59	1	113
18	Can we overload the main() method?	ROHAN	Mar 03, 2021 10:58	1	100
19	Can we override the overloaded method?	ROHAN	Mar 11, 2021 11:41	1	106
20	Can we override the private methods?	VAMSI	Mar 11, 2021 11:43	1	99
21	Can we override the static method?	RANJIT	Mar 06, 2021 10:16	1	102
22	Can we override the static methods?	RANJIT	Feb 19, 2021 11:05	1	103
23	Can you achieve Runtime Polymorphism by data members?	RANJIT	Apr 20, 2021 12:53	1	76
24	Can you declare an interface method static?	VAMSI	Apr 28, 2021 10:14	1	80
25	Can you declare the main method as final?	JOSHUA	Apr 06, 2021 12:49	1	109
26	Can you have virtual functions in Java?	VAMSI	Mar 30, 2021 12:14	1	107
27	Can you make a constructor final?	VAMSI	Feb 15, 2021 10:54	1	113
28	Can you use abstract and final both with a method?	SANJAY	Apr 27, 2021 10:47	1	88
29	Do I need to import java.lang package any time? Why?	RANJIT	Jun 05, 2021 13:52	1	57
30	do we have DESTRUCTORS in Java? have never seen an example of a destructor program, only constructor?	RANJIT	Mar 29, 2021 12:22	1	108
31	Does constructor return any value?	JOSHUA	Feb 13, 2021 10:40	1	104
32	Explain the hierarchy of Java Exception classes?	JOSHUA	Sep 20, 2021 01:44	1	41
33	For Instance, a Hotel management system can be termed as a software, an app, and also an Information system. Why so many names for just one thing? The concept of a software, and an Information system, there's no difference here, just the names?	JOSHUA	Apr 20, 2021 12:55	1	77
34	How can constructor chaining be done by using the super keyword?	JOSHUA	Aug 05, 2021 04:13	0	37
35	How can we access some class in another class in Java?	VAMSI	May 29, 2021 09:32	1	69
36	How many types of constructors are used in Java?	SANJAY	Feb 13, 2021 10:35	1	109
37	How many types of exception can occur in a Java program?	SANJAY	Sep 17, 2021 02:22	1	49
38	How many types of memory areas are allocated by JVM?	SANJAY	Feb 03, 2021 09:40	1	113
39	How to add Bootstrap to Angular 10?	RANJIT	Mar 09, 2021 11:15	1	112
40	How to make a read-only class in Java?	KRISHNA SWAROOP	May 03, 2021 09:58	1	88
41	How to make a write-only class in Java?	PADMAKEECHU	May 04, 2021 13:11	1	83
42	how we can take list from user?	RANJIT	Apr 23, 2021 11:16	1	89
43	I want to upload a large file for my application. but I'm getting a java heap space error. I use optional when getting the file in my application code. How can I add this file by dividing or shredding it?	RANJIT	Apr 07, 2021 11:50	1	74
44	If I don't provide any arguments on the command line, then what will the value stored in the String array passed into the main() method, empty or NULL?	JOSHUA	Feb 08, 2021 08:50	1	130
45	Is constructor inherited?	RANJIT	Feb 15, 2021 10:50	1	119
46	Is delete, next, main, exit or null keyword in java?	SANJAY	Feb 06, 2021 08:38	1	176
47	Is Empty .java file name a valid source file name?	VAMSI	Feb 06, 2021 08:31	1	104
48	Is it possible to instantiate the abstract class?	RANJIT	Apr 28, 2021 10:11	1	74
49	Is there any difference between nested classes and inner classes?	VAMSI	Jul 17, 2021 13:20	1	39
50	List the features of Java Programming language.	RANJIT	Feb 04, 2021 09:37	1	110
51	Name some classes present in java.util.regex package?	SANJAY	Jul 06, 2021 15:30	0	33
52	One of my s3 is bucket is deleted but i need to restore is there any possible way?	ALLINO	Mar 06, 2021 12:02	0	114
53	RanjitWhat is the output of the following Java program? 1. class Test 2. { 3. int i; 4. } 5. public class Main 6. { 7. public static void main (String args[]) 8. { 9. Test test = new Test(); 10. System.ou	RANJIT	Feb 17, 2021 12:34	1	88
54	What are anonymous inner classes?	ROHAN	Jul 26, 2021 11:43	0	36
55	What are the advantages of defining packages in Java ?	ROHAN	Jun 02, 2021 13:22	0	59
56	What are the advantages of defining packages in Java?	JOSHUA	Aug 28, 2021 02:48	1	35
57	What are the advantages of Encapsulation in Java?	FRAUSKY	May 04, 2021 13:15	1	85
58	What are the advantages of Java inner classes?	ROHAN	Jul 07, 2021 15:06	1	39
59	What are the advantages of Packages in Java?	RANJIT	Feb 10, 2021 08:27	1	106
60	What are the advantages of passing this into a method instead of the current class object itself?	RANJIT	Feb 24, 2021 11:36	1	100
61	What are the differences between this and super keyword?	SANJAY	Mar 02, 2021 10:40	1	129
62	What are the main differences between the Java platform and other platforms?	SANJAY	Feb 04, 2021 10:00	1	110
63	What are the main uses of the super keyword?	VAMSI	Mar 02, 2021 10:38	1	108
64	What are the main uses of this keyword?	JOSHUA	Feb 24, 2021 11:35	1	99
65	What are the most important features of Java?	GANESH MALLA	Jan 23, 2021 09:46	1	120
66	What are the restrictions that are applied to the Java static methods?	JOSHUA	Feb 18, 2021 12:06	1	96
67	What are the various access specifiers in Java?	VAMSI	Feb 09, 2021 11:12	1	118
68	What do you understand by copy constructor in Java?	RANJIT	Feb 16, 2021 11:23	1	104
69	What do you understand by inter-thread communication?	SANJAY	Jul 26, 2021 14:34	1	53
70	What do you understand by Java virtual machine?	JOSHUA	Feb 03, 2021 09:22	2	129
71	What gives Java its 'write once and run anywhere' nature?	RANJIT	Feb 06, 2021 08:22	1	106
72	What if I write static public void instead of public static void?	RANJIT	Feb 08, 2021 08:52	1	106
73	What if the static modifier is removed from the signature of the main method?	ROHAN	Feb 20, 2021 09:55	1	99
74	What if the static modifier is removed from the signature of the main method?	VAMSI	Mar 08, 2021 12:41	1	95
75	what is a 'translation look-aside buffer'?	JOSHUA	Apr 23, 2021 11:13	1	92
76	What is a marker interface?	SANJAY	Apr 30, 2021 10:21	1	82
77	What is a virtual file system? Give an example.	SANJAY	Apr 19, 2021 12:18	1	86
78	What is aggregation?	RANJIT	Feb 26, 2021 10:21	1	115
79	What is an object?	VAMSI	Feb 11, 2021 11:44	1	104
80	What is classloader?	JOSHUA	Feb 06, 2021 08:26	1	115
81	What is composition?	SANJAY	Feb 27, 2021 10:19	1	102
82	What is context switching?	JOSHUA	Jul 27, 2021 14:55	1	49
83	What is covariant return type?	ROHAN	Aug 13, 2021 07:28	0	33
84	What is Exception Handling?	JOSHUA	Jun 01, 2021 08:24	1	66
85	What is exception propagation?	VAMSI	Sep 27, 2021 05:41	1	27
86	What is finally block?	ROHAN	Sep 23, 2021 04:49	1	29
87	What is Hibernate Framework?	RANJIT	Sep 06, 2021 08:49	1	22
88	What is Java instance Of operator?	ROHAN	Apr 22, 2021 12:42	1	92
89	What is Java instanceOf operator?	ROHAN	May 29, 2021 09:17	1	63
90	What is JIT compiler?	JOSHUA	Feb 04, 2021 09:43	1	113
91	What is method overloading?	SANJAY	Mar 03, 2021 10:57	1	103
92	What is method overriding?	SANJAY	Mar 06, 2021 10:15	1	96
93	What is object cloning?	RANJIT	Mar 02, 2021 10:43	1	106
94	What is object-oriented paradigm?	RANJIT	Feb 11, 2021 11:46	1	116
95	What is Runtime Polymorphism?	RANJIT	May 27, 2021 09:23	1	67
96	What is singleton class? where is it used?	VAMSI	Aug 14, 2021 13:05	1	40
97	What is String Pool?	ROHAN	Oct 08, 2021 05:11	1	24
98	What is super in java?	RANJIT	Aug 03, 2021 04:43	1	36
99	What is the abstract class?	RANJIT	Aug 14, 2021 00:48	1	38
100	What is the abstraction?	VAMSI	Apr 15, 2021 13:06	0	85
101	What is the abstraction?	SANJAY	Apr 22, 2021 12:43	1	89
102	What is the base class for Error and Exception?	ROHAN	Jun 05, 2021 13:56	1	59
103	What is the constructor?	VAMSI	Feb 12, 2021 11:07	1	111
104	What is the default value of the local variables?	SANJAY	Feb 08, 2021 08:56	1	110
105	What is the difference between abstraction and encapsulation?	JOSHUA	Apr 15, 2021 13:04	0	73
106	What is the difference between abstraction and encapsulation?	ROHAN	Apr 26, 2021 09:52	1	71
107	What is the difference between aggregation and composition?	RANJIT	Mar 01, 2021 10:55	1	102
108	What is the difference between an object-oriented programming language and object-based programming language?	RANJIT	Feb 12, 2021 11:04	1	102
109	What is the difference between JDK, JRE, and JVM?	VAMSI	Feb 03, 2021 09:37	1	106
110	What is the difference between static binding and dynamic binding?	SANJAY	Apr 21, 2021 12:30	0	101
111	What is the difference between the final method and abstract method?	SANJAY	Apr 10, 2021 12:46	1	97
112	What is the final blank variable?	VAMSI	Apr 02, 2021 13:05	1	98
113	What is the final class?	ROHAN	Apr 01, 2021 13:03	1	106
114	What is the final variable?	SANJAY	Apr 01, 2021 13:04	1	99
115	What is the Inheritance?	RANJIT	Feb 25, 2021 10:01	1	106
116	What is the interface?	JOSHUA	Apr 28, 2021 10:13	1	81
117	What is the meaning of immutable regarding String?	JOSHUA	Oct 18, 2021 01:55	0	9
118	What is the output of the following Java program?	SANJAY	Feb 11, 2021 11:48	1	114
119	*What is the output of the following Java program? 1. class Test 2. { 3. public static void main (String args[]) 4. { 5. System.out.println(10 20 +**	SANJAY	Feb 10, 2021 08:40	1	89
120	What is the output of the following Java program? 1. class Test 2. { 3. public static void main (String args[]) 4. { 5. System.out.println(10 + 20 +	JOSHUA	Feb 10, 2021 08:25	1	102
121	What is the output of the following Java program? 1. class Main { 2. public static void main(String args[]){ 3. final int i; 4. i = 20; 5. System.out.println(i); 6. } 7. }	SANJAY	Apr 08, 2021 12:50	1	109
122	What is the output of the following Java program? 1. public class Test 2. { 3. Test(int a, int b) 4. { 5. System.out.println("a = "+a+" b = "+b); 6. } 7. Test(int a, float b) 8. { 9. System.out.println(	VAMSI	Feb 16, 2021 11:25	1	87
123	What is the package?	VAMSI	Aug 25, 2021 05:38	1	39
124	What is the platform?	VAMSI	Feb 04, 2021 09:53	1	109
125	What is the purpose of a default constructor?	VAMSI	Feb 13, 2021 10:37	1	108
126	What is the purpose of static methods and variables?	JOSHUA	Feb 09, 2021 11:17	1	106
127	What is the purpose of using Buffered Input Stream and Buffered Output Stream classes?	RANJIT	Jul 19, 2021 13:53	0	53
128	What is the static block?	SANJAY	Feb 19, 2021 11:07	1	102
129	What is the static import?	ROHAN	Sep 13, 2021 00:15	1	26
130	What is the static method?	VAMSI	Feb 18, 2021 12:09	1	102
131	What is the static variable?	VAMSI	Feb 17, 2021 12:36	1	98
132	What is this keyword in java?	RANJIT	Feb 23, 2021 10:58	1	100
133	*what programming language is this? r = s t x = r + 2 m = w + q**	JOSHUA	Mar 30, 2021 11:47	1	98
134	What will be the initial value of an object reference which is defined as an instance variable?	JOSHUA	Feb 12, 2021 11:05	1	103
135	When can an object reference be cast to an interface reference?	VAMSI	May 01, 2021 07:46	1	77
136	Which class is the superclass for all the classes?	SANJAY	Feb 25, 2021 10:07	1	96
137	Which is more important - learning to program or learning to debug?	VAMSI	Apr 20, 2021 12:54	1	80
138	while I use to attend web development class, the only JavaScript code our teacher used in the project was the login validation.What other things does JavaScript developers do?	VAMSI	Apr 07, 2021 11:53	1	77
139	Why can we not override static method?	VAMSI	Mar 09, 2021 11:15	1	117
140	Why CharArray() is preferred over String to store the password?	JOSHUA	Jul 06, 2021 09:20	0	39
141	Why do we have generic programming?	ROHAN	Apr 19, 2021 11:59	1	92
142	Why does Java not support pointers?	ROHAN	Mar 01, 2021 10:57	1	159
143	Why is BST not implemented in Java? Or any Tree based data structure.	VAMSI	Apr 12, 2021 12:27	1	84
144	Why is Inheritance used in Java?	JOSHUA	Feb 25, 2021 10:04	1	100
145	Why is multiple inheritance not supported in java?	ROHAN	Feb 26, 2021 10:16	1	93
146	Why is the main method static?	ROHAN	Feb 18, 2021 12:11	1	102

S.No

Question

Posted By

Date

Answers

Views

S.No

Question

Posted By

Date

Answers

Views

Can a class have an interface?

SANJAY

Jul 22, 2021 09:03

Can an exception be rethrown?

ROHAN

Aug 07, 2021 11:29

Can finally block be used without a catch?

ROHAN

Jul 05, 2021 14:12

Can I import same package or class twice? Will the JVM load the package twice at runtime?

RANJIT

Jul 02, 2021 13:34

Can I import same package/class twice? Will the JVM load the package twice at runtime?

RANJIT

Sep 07, 2021 00:56

Can the Interface be final?

ROHAN

Apr 30, 2021 10:20

106

Can there be an abstract method without an abstract class?

ROHAN

Apr 27, 2021 10:46

Can we change the scope of the overridden method in the subclass?

RANJIT

Mar 11, 2021 11:44

134

Can we declare a constructor as final?

RANJIT

Apr 08, 2021 12:56

104

Can we declare an interface as final?

JOSHUA

Apr 08, 2021 12:57

Can we declare the static variables and methods in an abstract class?

SANJAY

Feb 20, 2021 10:05

106

Can we define private and protected modifiers for the members in interfaces?

SANJAY

Aug 17, 2021 04:20

Can we execute a program without main() method?

RANJIT

Mar 08, 2021 12:39

102

Can we make constructors static?

JOSHUA

Feb 20, 2021 09:56

114

Can we make the abstract methods static in Java?

VAMSI

Feb 20, 2021 10:02

111

Can we modify the throws clause of the superclass method while overriding it in the subclass?

VAMSI

Mar 12, 2021 11:15

138

Can we overload the constructors?

SANJAY

Feb 15, 2021 10:59

113

Can we overload the main() method?

ROHAN

Mar 03, 2021 10:58

100

Can we override the overloaded method?

ROHAN

Mar 11, 2021 11:41

106

Can we override the private methods?

VAMSI

Mar 11, 2021 11:43

Can we override the static method?

RANJIT

Mar 06, 2021 10:16

102

Can we override the static methods?

RANJIT

Feb 19, 2021 11:05

103

Can you achieve Runtime Polymorphism by data members?

RANJIT

Apr 20, 2021 12:53

Can you declare an interface method static?

VAMSI

Apr 28, 2021 10:14

Can you declare the main method as final?

JOSHUA

Apr 06, 2021 12:49

109

Can you have virtual functions in Java?

VAMSI

Mar 30, 2021 12:14

107

Can you make a constructor final?

VAMSI

Feb 15, 2021 10:54

113

Can you use abstract and final both with a method?

SANJAY

Apr 27, 2021 10:47

Do I need to import java.lang package any time? Why?

RANJIT

Jun 05, 2021 13:52

do we have DESTRUCTORS in Java? have never seen an example of a destructor program, only constructor?

RANJIT

Mar 29, 2021 12:22

108

Does constructor return any value?

JOSHUA

Feb 13, 2021 10:40

104

Explain the hierarchy of Java Exception classes?

JOSHUA

Sep 20, 2021 01:44

For Instance, a Hotel management system can be termed as a software, an app, and also an Information system. Why so many names for just one thing? The concept of a software, and an Information system, there's no difference here, just the names?

JOSHUA

Apr 20, 2021 12:55

How can constructor chaining be done by using the super keyword?

JOSHUA

Aug 05, 2021 04:13

How can we access some class in another class in Java?

VAMSI

May 29, 2021 09:32

How many types of constructors are used in Java?

SANJAY

Feb 13, 2021 10:35

109

How many types of exception can occur in a Java program?

SANJAY

Sep 17, 2021 02:22

How many types of memory areas are allocated by JVM?

SANJAY

Feb 03, 2021 09:40

113

How to add Bootstrap to Angular 10?

RANJIT

Mar 09, 2021 11:15

112

How to make a read-only class in Java?

KRISHNA SWAROOP

May 03, 2021 09:58

How to make a write-only class in Java?

PADMAKEECHU

May 04, 2021 13:11

how we can take list from user?

RANJIT

Apr 23, 2021 11:16

I want to upload a large file for my application. but I'm getting a java heap space error. I use optional when getting the file in my application code. How can I add this file by dividing or shredding it?

RANJIT

Apr 07, 2021 11:50

If I don't provide any arguments on the command line, then what will the value stored in the String array passed into the main() method, empty or NULL?

JOSHUA

Feb 08, 2021 08:50

130

Is constructor inherited?

RANJIT

Feb 15, 2021 10:50

119

Is delete, next, main, exit or null keyword in java?

SANJAY

Feb 06, 2021 08:38

176

Is Empty .java file name a valid source file name?

VAMSI

Feb 06, 2021 08:31

104

Is it possible to instantiate the abstract class?

RANJIT

Apr 28, 2021 10:11

Is there any difference between nested classes and inner classes?

VAMSI

Jul 17, 2021 13:20

List the features of Java Programming language.

RANJIT

Feb 04, 2021 09:37

110

Name some classes present in java.util.regex package?

SANJAY

Jul 06, 2021 15:30

One of my s3 is bucket is deleted but i need to restore is there any possible way?

ALLINO

Mar 06, 2021 12:02

114

RanjitWhat is the output of the following Java program? 1. class Test 2. { 3. int i; 4. } 5. public class Main 6. { 7. public static void main (String args[]) 8. { 9. Test test = new Test(); 10. System.ou

RANJIT

Feb 17, 2021 12:34

What are anonymous inner classes?

ROHAN

Jul 26, 2021 11:43

What are the advantages of defining packages in Java ?

ROHAN

Jun 02, 2021 13:22

What are the advantages of defining packages in Java?

JOSHUA

Aug 28, 2021 02:48

What are the advantages of Encapsulation in Java?

FRAUSKY

May 04, 2021 13:15

What are the advantages of Java inner classes?

ROHAN

Jul 07, 2021 15:06

What are the advantages of Packages in Java?

RANJIT

Feb 10, 2021 08:27

106

What are the advantages of passing this into a method instead of the current class object itself?

RANJIT

Feb 24, 2021 11:36

100

What are the differences between this and super keyword?

SANJAY

Mar 02, 2021 10:40

129

What are the main differences between the Java platform and other platforms?

SANJAY

Feb 04, 2021 10:00

110

What are the main uses of the super keyword?

VAMSI

Mar 02, 2021 10:38

108

What are the main uses of this keyword?

JOSHUA

Feb 24, 2021 11:35

What are the most important features of Java?

GANESH MALLA

Jan 23, 2021 09:46

120

What are the restrictions that are applied to the Java static methods?

JOSHUA

Feb 18, 2021 12:06

What are the various access specifiers in Java?

VAMSI

Feb 09, 2021 11:12

118

What do you understand by copy constructor in Java?

RANJIT

Feb 16, 2021 11:23

104

What do you understand by inter-thread communication?

SANJAY

Jul 26, 2021 14:34

What do you understand by Java virtual machine?

JOSHUA

Feb 03, 2021 09:22

129

What gives Java its 'write once and run anywhere' nature?

RANJIT

Feb 06, 2021 08:22

106

What if I write static public void instead of public static void?

RANJIT

Feb 08, 2021 08:52

106

What if the static modifier is removed from the signature of the main method?

ROHAN

Feb 20, 2021 09:55

What if the static modifier is removed from the signature of the main method?

VAMSI

Mar 08, 2021 12:41

what is a 'translation look-aside buffer'?

JOSHUA

Apr 23, 2021 11:13

What is a marker interface?

SANJAY

Apr 30, 2021 10:21

What is a virtual file system? Give an example.

SANJAY

Apr 19, 2021 12:18

What is aggregation?

RANJIT

Feb 26, 2021 10:21

115

What is an object?

VAMSI

Feb 11, 2021 11:44

104

What is classloader?

JOSHUA

Feb 06, 2021 08:26

115

What is composition?

SANJAY

Feb 27, 2021 10:19

102

What is context switching?

JOSHUA

Jul 27, 2021 14:55

What is covariant return type?

ROHAN

Aug 13, 2021 07:28

What is Exception Handling?

JOSHUA

Jun 01, 2021 08:24

What is exception propagation?

VAMSI

Sep 27, 2021 05:41

What is finally block?

ROHAN

Sep 23, 2021 04:49

What is Hibernate Framework?

RANJIT

Sep 06, 2021 08:49

What is Java instance Of operator?

ROHAN

Apr 22, 2021 12:42

What is Java instanceOf operator?

ROHAN

May 29, 2021 09:17

What is JIT compiler?

JOSHUA

Feb 04, 2021 09:43

113

What is method overloading?

SANJAY

Mar 03, 2021 10:57

103

What is method overriding?

SANJAY

Mar 06, 2021 10:15

What is object cloning?

RANJIT

Mar 02, 2021 10:43

106

What is object-oriented paradigm?

RANJIT

Feb 11, 2021 11:46

116

What is Runtime Polymorphism?

RANJIT

May 27, 2021 09:23

What is singleton class? where is it used?

VAMSI

Aug 14, 2021 13:05

What is String Pool?

ROHAN

Oct 08, 2021 05:11

What is super in java?

RANJIT

Aug 03, 2021 04:43

What is the abstract class?

RANJIT

Aug 14, 2021 00:48

100

What is the abstraction?

VAMSI

Apr 15, 2021 13:06

101

What is the abstraction?

SANJAY

Apr 22, 2021 12:43

102

What is the base class for Error and Exception?

ROHAN

Jun 05, 2021 13:56

103

What is the constructor?

VAMSI

Feb 12, 2021 11:07

111

104

What is the default value of the local variables?

SANJAY

Feb 08, 2021 08:56

110

105

What is the difference between abstraction and encapsulation?

JOSHUA

Apr 15, 2021 13:04

106

What is the difference between abstraction and encapsulation?

ROHAN

Apr 26, 2021 09:52

107

What is the difference between aggregation and composition?

RANJIT

Mar 01, 2021 10:55

102

108

What is the difference between an object-oriented programming language and object-based programming language?

RANJIT

Feb 12, 2021 11:04

102

109

What is the difference between JDK, JRE, and JVM?

VAMSI

Feb 03, 2021 09:37

106

110

What is the difference between static binding and dynamic binding?

SANJAY

Apr 21, 2021 12:30

101

111

What is the difference between the final method and abstract method?

SANJAY

Apr 10, 2021 12:46

112

What is the final blank variable?

VAMSI

Apr 02, 2021 13:05

113

What is the final class?

ROHAN

Apr 01, 2021 13:03

106

114

What is the final variable?

SANJAY

Apr 01, 2021 13:04

115

What is the Inheritance?

RANJIT

Feb 25, 2021 10:01

106

116

What is the interface?

JOSHUA

Apr 28, 2021 10:13

117

What is the meaning of immutable regarding String?

JOSHUA

Oct 18, 2021 01:55

118

What is the output of the following Java program?

SANJAY

Feb 11, 2021 11:48

114

119

What is the output of the following Java program? 1. class Test 2. { 3. public static void main (String args[]) 4. { 5. System.out.println(10 * 20 +

SANJAY

Feb 10, 2021 08:40

120

What is the output of the following Java program? 1. class Test 2. { 3. public static void main (String args[]) 4. { 5. System.out.println(10 + 20 +

JOSHUA

Feb 10, 2021 08:25

102

121

What is the output of the following Java program? 1. class Main { 2. public static void main(String args[]){ 3. final int i; 4. i = 20; 5. System.out.println(i); 6. } 7. }

SANJAY

Apr 08, 2021 12:50

109

122

What is the output of the following Java program? 1. public class Test 2. { 3. Test(int a, int b) 4. { 5. System.out.println("a = "+a+" b = "+b); 6. } 7. Test(int a, float b) 8. { 9. System.out.println(

VAMSI

Feb 16, 2021 11:25

123

What is the package?

VAMSI

Aug 25, 2021 05:38

124

What is the platform?

VAMSI

Feb 04, 2021 09:53

109

125

What is the purpose of a default constructor?

VAMSI

Feb 13, 2021 10:37

108

126

What is the purpose of static methods and variables?

JOSHUA

Feb 09, 2021 11:17

106

127

What is the purpose of using Buffered Input Stream and Buffered Output Stream classes?

RANJIT

Jul 19, 2021 13:53

128

What is the static block?

SANJAY

Feb 19, 2021 11:07

102

129

What is the static import?

ROHAN

Sep 13, 2021 00:15

130

What is the static method?

VAMSI

Feb 18, 2021 12:09

102

131

What is the static variable?

VAMSI

Feb 17, 2021 12:36

132

What is this keyword in java?

RANJIT

Feb 23, 2021 10:58

100

133

what programming language is this? r = s * t x = r + 2 m = w + q

JOSHUA

Mar 30, 2021 11:47

134

What will be the initial value of an object reference which is defined as an instance variable?

JOSHUA

Feb 12, 2021 11:05

103

135

When can an object reference be cast to an interface reference?

VAMSI

May 01, 2021 07:46

136

Which class is the superclass for all the classes?

SANJAY

Feb 25, 2021 10:07

137

Which is more important - learning to program or learning to debug?

VAMSI

Apr 20, 2021 12:54

138

while I use to attend web development class, the only JavaScript code our teacher used in the project was the login validation.What other things does JavaScript developers do?

VAMSI

Apr 07, 2021 11:53

139

Why can we not override static method?

VAMSI

Mar 09, 2021 11:15

117

140

Why CharArray() is preferred over String to store the password?

JOSHUA

Jul 06, 2021 09:20

141

Why do we have generic programming?

ROHAN

Apr 19, 2021 11:59

142

Why does Java not support pointers?

ROHAN

Mar 01, 2021 10:57

159

143

Why is BST not implemented in Java? Or any Tree based data structure.

VAMSI

Apr 12, 2021 12:27

144

Why is Inheritance used in Java?

JOSHUA

Feb 25, 2021 10:04

100

145

Why is multiple inheritance not supported in java?

ROHAN

Feb 26, 2021 10:16

146

Why is the main method static?

ROHAN

Feb 18, 2021 12:11

102

Not sure what course is right for you?

Choose the right course for you.
Get the help of our experts and find a course that best suits your needs.

Let`s Connect