Java Training

Java Training

+ Follow 18,723 Followers

Showing 1 to 25 of 162
Sort By: 
L

Lav 14 Jun in  BTech Tuition, Java Programming(BTech Tuition), Java Training Classes, Core Java(Java Training Classes)

Show previous answers

Nacre Technologies Pvt ltd replied | 3 days ago

There is no denial to the fact that Java is the most important thing happened to IT industry across the globe after C++. It has an illustrious journey since its inception and has been the backbone of many new products and services that have surprised the world. So it becomes even more important and equally curios to talk about the future of it.

0 0

Sharpnerz replied | 3 days ago

Hey, Greetings for the dayWell honestly there is not much scope in java. you should learn .net this single technology helps you in various platforms.

0 0

Answer

You can add upto 6 Images

V

Show previous answers

Shri Ram replied | 14 May

You have multiple options. Either you go for summer training in an institute and other way is you can take online training as I provide and provide lots notes that will be helpful to you.

0 0
A

Abhay replied | 15 May

Please visit NIIT Chandigarh and enroll. they will provide all java related course such as core java, J2EE, JSP.

0 0

Answer

You can add upto 6 Images

P

Show previous answers

Killari replied | 10 May

C - Rs. 1000
Core Java - Rs. 3000
Python - Rs. 3000
Html CSS - Rs. 2000
JavaScript - Rs. 2000

0 0

Iiht Viman Nagar replied | 15 May

The best way to look at is not to start with price, rather than compare the content, delivery methodology, reputation of the institute, placement facility etc.

0 0

Answer

You can add upto 6 Images

R

Show previous answers

N

Ngcc replied | 16 Mar

Java is like any other programming language. It has its own syntax for declaring local variables, functions (called methods in the OOPS world). You can execute a given task several times in counter based loops, do-while loops and while-do loops, for loops at all.
But really just to learn those would not justify coming to Java because though it is a programming language, Java...  more»
Java is like any other programming language. It has its own syntax for declaring local variables, functions (called methods in the OOPS world). You can execute a given task several times in counter based loops, do-while loops and while-do loops, for loops at all.
But really just to learn those would not justify coming to Java because though it is a programming language, Java introduced several new thought streams to the common programmer. Exceptions, ability to program multi-threaded processes at all. Some of these existed earlier too but Java brought them to a more usable level of abstraction.
For a good start, what you really need is an introduction to Object Oriented thinking, because java's power comes from this basic nature. So if you are serious, pick some articles/books which introduce you simultaneously to Java and OOPS. The prerequisites are simple. You need to be able to think logically, be able to write the pseudo code for a specific task, be able to 'imagine in blocks' (to be able to clearly define classes at all), be able to read and understand the technical language and notation used in your book. Having a knowledge of computer memory is good, especially if you want to understand specific concepts like method calling, object references, String interning. The more advanced areas of Java namely Collections, Threading, pattern based thinking will come later when you are familiar with how to use the basic OOPS building block concepts, to solve a larger problem.
For someone who needs just Java, the above approach works. But I wanted to appreciate the reasons why Java evolved and the difference it made to programming. So I started with C, moved on to C++ and then got into Java. The consequence is the realization on the differences in programming and ease of exploiting the OOPS world in Java. But that being my approach which is longer and tedious, you can take a call whether to take it or leave it. «less

0 0

Friendmile replied | 17 Mar

Java is most popular and secure language in this modern age. Java is one of the leading programming languages for the programmers. All the Java based application is too fast, safe and millions of people depend on it for several aspects.
Now come to your questions to learn java basic requirement is you have knowledge of basic programming language as an instance looping, data...  more»
Java is most popular and secure language in this modern age. Java is one of the leading programming languages for the programmers. All the Java based application is too fast, safe and millions of people depend on it for several aspects.
Now come to your questions to learn java basic requirement is you have knowledge of basic programming language as an instance looping, data structure, data types, functions etc. To learn java it takes 1 to 2 months and it also depends upon your learning skills. «less

0 0

Answer

You can add upto 6 Images

A

Show previous answers

A

Adil replied | 25/10/2016

Hello..I can't see any of the details (phone number ) of anyone who replied to me. Please reach me at 84 six six 876 zero 73 or email at adilmd98 at gmail dot com

0 0

K. Das replied | 26/10/2016

I can help you,but i am based out of bangalore. Also i am free on saturday and sunday.Let me know if it works.

0 0

Answer

You can add upto 6 Images

Show previous answers

Amaldev P S replied | 07/09/2016

I have done this in javascript . i think u just only need to replace the var with string .

var myStr = "Thith ith my thtring";
var newStr = "";
for(var i=0;i{
newStr = newStr.concat( (myStr[i]=="s")?"th":myStr[i]);
};

0 0
A

Abhishek replied | 08/09/2016

Apart from all the basic ways, this can be done with the help of pattern(regular expressions) which in-turn applies String class replaceAll method:
public static String replaceString(String sourceStr, String replaceString, String replaceBy) {
return Pattern.compile(replaceString).matcher(sourceStr).replaceAll(replaceBy);
}

public static void...  more»
Apart from all the basic ways, this can be done with the help of pattern(regular expressions) which in-turn applies String class replaceAll method:
public static String replaceString(String sourceStr, String replaceString, String replaceBy) {
return Pattern.compile(replaceString).matcher(sourceStr).replaceAll(replaceBy);
}

public static void main(String[] args) {
System.out.println(replaceString("This is my string", "s", "th"));
}

Output:
Thith ith my thtring «less

0 0

Answer

You can add upto 6 Images

V

Vinod 18/07/2016 in  Java Training Classes

Show previous answers

Deb Prakash Chatterjee replied | 06/09/2016

You Have to write code in IDE and make many more exciting programs. That's how java is used.

0 0
M

Michael replied | 23 Jan

Basically, Java is divided into two parts such as Core JAVA. Advance JAVA and Frameworks. Java programming language is sought by programmers all over the world because of its unique qualities of platform independence, fast development time, and object-oriented approach among others. if you are looking for an institute that can provide you with Java course, then searching online...  more»
Basically, Java is divided into two parts such as Core JAVA. Advance JAVA and Frameworks. Java programming language is sought by programmers all over the world because of its unique qualities of platform independence, fast development time, and object-oriented approach among others. if you are looking for an institute that can provide you with Java course, then searching online will help locate a desired place for you. One such Institute is Koenig Solutions which can help you obtain this certification. «less

0 0

Answer

You can add upto 6 Images

S

Sushil 08/07/2016 in  Java Training Classes

Show previous answers

Rohit Y. replied | 12 Mar

Of course, it means you can subclass it, but you cannot override that particular method. Yes, there may be "final" methods in "abstract" class. But, any "abstract" method in the class can't be declared final. So we can declare a method as final in Abstract class, and it will be over ridden in subclass.

0 0
S

Shilpa replied | 13 Mar

No because we have to provide an abstract method with implementation in the subclass (the child class of the parent class in which the abstract method was declared). And for providing this implementation the abstract method has to be overridden in the child class.
Since final methods cannot be overridden so we can't declare a method both abstract and final as by doing so you...  more»
No because we have to provide an abstract method with implementation in the subclass (the child class of the parent class in which the abstract method was declared). And for providing this implementation the abstract method has to be overridden in the child class.
Since final methods cannot be overridden so we can't declare a method both abstract and final as by doing so you won't be able to implement the method in the child class as it was declared both final and abstract in the parent class. «less

0 0

Answer

You can add upto 6 Images

R

Reshma 08/07/2016 in  Java Training Classes

Show previous answers

B

Balaji replied | 03/10/2016

No. 'Abstract' means incomplete. Abstract class is also an incomplete class. Only concrete classes can be instantiated.

0 0

Vikas replied | 11 Mar

No, You can't. But you can use Abstract class reference variable to hold the object of sub-class. Whenever you do like this its seems that you are creating an object but actually it doesn't happen.

0 0

Answer

You can add upto 6 Images

N

Neval 08/07/2016 in  Java Training Classes

Show previous answers

Sreekanth replied | 18/08/2016

Abstraction and Encapsulation are two important Object Oriented Programming (OOPS) concepts. Encapsulation and Abstraction both are interrelated terms. Encapsulate means to hide. Encapsulation is also called data hiding.You can think Encapsulation like a capsule (medicine tablet) which hides medicine inside it

0 0

Alok replied | 26/08/2016

Abstraction is process to hiding implementation, encapsulation is process of binding state and behavior of a class and controlling what should be visible to other classes.

0 0

Answer

You can add upto 6 Images

A

Agastya 08/07/2016 in  Java Training Classes

Show previous answers

Nipun replied | 04/08/2016

finally is introduced to perform the cleanup operations such as closing the open DB connection clearing up the resources etc.

0 0

Sreekanth replied | 18/08/2016

Java finally block is a block that is used to execute important code such as closing connection, stream etc. Java finally block is always executed whether exception is handled or not. Java finally block must be followed by try or catch block

0 0

Answer

You can add upto 6 Images

N

Neha 08/07/2016 in  Java Training Classes

Show previous answers

Ramesh replied | 04/08/2016

String - immutable (uneditable)
StringBuffer - mutable (editable) AND Synchronized (concurrent access is not possible by multiple threads)
StringBuilder - mutable (editable) AND UnSynchronized (concurrent access is possible by multiple threads)

0 0

Sreekanth replied | 18/08/2016

String is immutable, if you try to alter their values, another object gets created, whereas StringBuffer and StringBuilder are mutable so they can change their values. Thread-Safety Difference: The difference between StringBuffer and StringBuilder is that StringBuffer is thread-safe.

0 0

Answer

You can add upto 6 Images

A

Anitha 08/07/2016 in  Java Training Classes

Show previous answers

Alok replied | 26/08/2016

No, you don't need to.
its available by default.

0 0
B

Balaji replied | 03/10/2016

Nope.

0 0

Answer

You can add upto 6 Images

S

Sarala 08/07/2016 in  Java Training Classes

Show previous answers

Sreekanth replied | 18/08/2016

If an exception is thrown prior to the try block, the finally code will not execute. The finally block always executes when the try block exits. So you can use finally without catch but you must use try.

0 0
B

Balaji replied | 03/10/2016

No. But it can be used without a catch block.

0 0

Answer

You can add upto 6 Images

A

Akash 08/07/2016 in  Java Training Classes

Show previous answers

S

Sagar replied | 04/08/2016

Eclipse is more popular since it has more flexible plug-ins facility

0 0

Sreekanth replied | 18/08/2016

Eclipse

0 0

Answer

You can add upto 6 Images

P

Parminder 08/07/2016 in  Java Training Classes

Show previous answers

Sreekanth replied | 18/08/2016

An interface in Java has remained a complex topic for many beginners to understand. The first thing which puzzles many programmers is the fact that you cannot define any method inside interface, it a just declaration. By rule, all method inside interface must be abstract (Well, this rule is changing in Java 8 to allow lambda expressions, now interface can have one non-abstract method,...  more»
An interface in Java has remained a complex topic for many beginners to understand. The first thing which puzzles many programmers is the fact that you cannot define any method inside interface, it a just declaration. By rule, all method inside interface must be abstract (Well, this rule is changing in Java 8 to allow lambda expressions, now interface can have one non-abstract method, also known as a default method). So, if you can't define anything, Why we need an interface? what's the use of an interface, if we are anyway going to write a class and override them to provide behaviour, Can't we declare those methods inside the class itself without using interface etc. Well, if you are thinking in terms of behaviour then you are really missing the point of interface. «less

0 0
B

Balaji replied | 03/10/2016

Polymorphism is one of the key uses of inheritance. For ex, there are many implementations of List interface. Any implementation can be taken as a list object. List list = new ArrayList(), List list2 = new LinkedList etc., This goes to many levels.

0 0

Answer

You can add upto 6 Images

W

Wren 08/07/2016 in  Java Training Classes

Show previous answers

Sreekanth replied | 18/08/2016

There are two types of exceptions: checked exceptions and unchecked exceptions. The main difference between checked and unchecked exception is that the checked exceptions are checked at compile-time while unchecked exceptions are checked at runtime.

0 0

Gsoft replied | 27/08/2016

Checked Exceptions: Which Exception classes are not extends RuntimeException class those are Checked exceptions.
Unchecked Exceptions: Which Exception classes are extends RuntimeException class those are Unchecked exceptions.

0 0

Answer

You can add upto 6 Images

J

Janardan 08/07/2016 in  Java Training Classes

Show previous answers

A

Allwyn Lopes replied | 21/07/2016

The exception is treated as uncaught exception and percolates to calling method. If there is a finally block the finally block is executed and the exception flows back to calling method.

0 0

Sreekanth replied | 18/08/2016

When an exception occur inside the catch block then in that case we have a condition of Exception called Uncaught exception. As our try-catch block is not able to handle it.Now below is how that is handled :

Java actually handles uncaught exceptions according to the thread in which they occur. When an uncaught exception occurs in a particular thread, Java looks for what...  more»
When an exception occur inside the catch block then in that case we have a condition of Exception called Uncaught exception. As our try-catch block is not able to handle it.Now below is how that is handled :

Java actually handles uncaught exceptions according to the thread in which they occur. When an uncaught exception occurs in a particular thread, Java looks for what is called anuncaught exception handler, actually an implementaiton of the interface UncaughtExceptionHandler. The latter interface has a method handleException(), which the implementer overrides to take appropriate action, such as printing the stack trace to the console. «less

0 0

Answer

You can add upto 6 Images

V

Vinodha 08/07/2016 in  Java Training Classes

Show previous answers

Sreekanth replied | 18/08/2016

1. Throws clause in used to declare an exception and thow keyword is used to throw an exception explicitly.

2. If we see syntax wise than throw is followed by an instance variable and throws is followed by exception class names.

3. The keyword throw is used inside method body to invoke an exception and throws clause is used in method declaration (signature).

4....  more»
1. Throws clause in used to declare an exception and thow keyword is used to throw an exception explicitly.

2. If we see syntax wise than throw is followed by an instance variable and throws is followed by exception class names.

3. The keyword throw is used inside method body to invoke an exception and throws clause is used in method declaration (signature).

4. By using Throw keyword in java you cannot throw more than one exception but using throws you can declare multiple exceptions «less

0 0

Vishal replied | 26/08/2016

Throw means throw an exception right away. And throws is a declaration that the method can tgrow an exception of apecified type.

0 0

Answer

You can add upto 6 Images

S

Shreya 08/07/2016 in  Java Training Classes

Show previous answers

S

Sayyada Mubeen replied | 07/08/2016

Yes

0 0

Sreekanth replied | 18/08/2016

Yes, When you catch an exception, it's possible to rethrow it. This is just the same as if you hadn't caught it in the first place - the exception will continue to bubble up through the layers until it reaches some other code that catches it (or it reaches the top of the stack and the program exits).

So why would you do this? Well, it means you have temporary access...  more»
Yes, When you catch an exception, it's possible to rethrow it. This is just the same as if you hadn't caught it in the first place - the exception will continue to bubble up through the layers until it reaches some other code that catches it (or it reaches the top of the stack and the program exits).

So why would you do this? Well, it means you have temporary access to the exception at the point where you caught it. One situation I've used this in is where I want to log the fact that an error has occurred, but the real error handling is happening at a higher level. You'd only do this, though, if this local logging could add something useful that the higher level error handling doesn't know about. «less

0 0

Answer

You can add upto 6 Images

S

Sujatha 08/07/2016 in  Java Training Classes

Show previous answers

Sreekanth replied | 18/08/2016

In java, string objects are immutable. Immutable simply means unmodifiable or unchangeable.

Once string object is created its data or state can't be changed but a new string object is created.

0 0

Vikas replied | 11 Mar

For security purpose.

0 0

Answer

You can add upto 6 Images

S

Shubham 08/07/2016 in  Java Training Classes

Show previous answers

Sreekanth replied | 18/08/2016

Serialization is the process of turning an object in memory into a stream of bytes so you can do stuff like store it on disk or send it over the network. Deserialization is the reverse process: turning a stream of bytes into an object in memory.

0 0

Vishal replied | 26/08/2016

The process of saving the state of an object into a persistent storage is called serialization. Only Serializable objects can be serialized.

0 0

Answer

You can add upto 6 Images

A

Anitha 08/07/2016 in  Java Training Classes

Show previous answers

Sreekanth replied | 18/08/2016

Yes.

0 0

Alok replied | 26/08/2016

no effect, after compiling java file it will have only one import.

0 0

Answer

You can add upto 6 Images

V

Show previous answers

Md Aftab replied | 04/08/2016

1. In case of Serializable, default serialization process is used. while in case of Externalizable custom Serialization process is used which is implemented by application.


2. JVM gives call back to readExternel() and writeExternal() of java.io.Externalizalbe interface for restoring and writing objects into persistence.

3. Externalizable interface provides...  more»
1. In case of Serializable, default serialization process is used. while in case of Externalizable custom Serialization process is used which is implemented by application.


2. JVM gives call back to readExternel() and writeExternal() of java.io.Externalizalbe interface for restoring and writing objects into persistence.

3. Externalizable interface provides complete control of serialization process to application.

4. readExternal() and writeExternal() supersede any specific implementation of writeObject and readObject methods. «less

0 0

Sreekanth replied | 18/08/2016

1. In case of Serializable, default serialization process is used. while in case of Externalizable custom Serialization process is used which is implemented by application.

2. JVM gives call back to readExternel() and writeExternal() of java.io.Externalizalbe interface for restoring and writing objects into persistence.

3. Externalizable interface provides...  more»
1. In case of Serializable, default serialization process is used. while in case of Externalizable custom Serialization process is used which is implemented by application.

2. JVM gives call back to readExternel() and writeExternal() of java.io.Externalizalbe interface for restoring and writing objects into persistence.

3. Externalizable interface provides complete control of serialization process to application.

4. readExternal() and writeExternal() supersede any specific implementation of writeObject and readObject methods.

Though Externalizable provides complete control, it also presents challenges to serialize super type state and take care of default values in case of transient variable and static variables in Java. If used correctly Externalizable interface can improve performance of serialization process. «less

0 0

Answer

You can add upto 6 Images

P

Prakash 08/07/2016 in  Java Training Classes

Show previous answers

Sreekanth replied | 18/08/2016

A singleton should be used when managing access to a resource which is shared by the entire application, and it would be destructive to potentially have multiple instances of the same class

0 0

Vishal replied | 26/08/2016

A singleton class is one which has only one object of itself own which is a static object and outside the class we cant create another object as the constructor is private.

0 0

Answer

You can add upto 6 Images

Have a Question?

Thousands of expert tutors are available to answer your question

Looking for Java Training Classes?

Find best Java Training Classes in your locality on UrbanPro.

FIND NOW

Do you offer Java Training Classes?

Create Free Profile Now »

Top Contributors

Career Group

76 Answers

Shibaji

59 Answers

Devendra

44 Answers

Sreekanth

38 Answers

Jay

36 Answers

Algorithm Class

35 Answers

Vaibhtech

32 Answers

Ashish

29 Answers

Srinivas

25 Answers

Sponsored

About UrbanPro

UrbanPro.com helps you to connect with the best Java Training Classes in India. Post Your Requirement today and get connected.

Find Best Java Training Classes?

Find Now »