Heap and Stack memory allocation in java, JAVA Programming

Assignment Help:

Each time an object is started in Java it goes into the area of memory named as heap. The primitive variables like double and int are allocated in the stack, if they are local instances and in the heap if they are member variables. In Java functions and local variables are pushed into stack when a function is called and stack pointer is decremented when a method invoke is finished. In a multi-threaded application each thread may have its own stack but will share the similar heap. That is why care could be taken in your code to avoid any concurrent access concern in the heap space. The stack is thread-safe because each and every thread will have its own stack with say 1MB RAM allocated for each thread but the heap is not thread-safe unless protected with synchronization through your code. The stack space may be increased with the -Xss option.

 

1766_Untitled.png

All Java functions are automatically re-entrant. It states that various threads can be executing the same method at once, each with its own copy of the local instance. A Java method can call itself without using any special declarations. That is known as a recursive method call. Provided enough stack space, recursive method calls are completely perfect and valid in Java though it is tough to debug


Related Discussions:- Heap and Stack memory allocation in java

Use the constructor, Can we use the constructor, instead of init(), to init...

Can we use the constructor, instead of init(), to initialize servlet? Ans) Yes. Of course you can use the constructor instead of init(). There's nothing to stop you. But you sho

Describe tostring() methods, Describe toString() Methods ? Print method...

Describe toString() Methods ? Print methods are general in some languages, but most Java programs operate differently. You can use System.out.println() to print any object. The

Basic difference b/w finalize(), 1.   final - it is a constant declarati...

1.   final - it is a constant declaration. 2.   finally - handles exception. The finally block is optional and gives a mechanism to clean up regardless of what occurs within

Online super market Applivation, i don''t need any code i need analysis an...

i don''t need any code i need analysis and design only -i need 4 use cases - description - activity diagram -sequence diagram -class diagram - data base diagram

What is a packet in the network environment, What is a packet within the ne...

What is a packet within the network environment? What kind of information does it contain? A packet is the shortest unit of data transmitted over a computer network. It's a mes

How many jsp scripting elements , How many JSP scripting elements and what ...

How many JSP scripting elements and what are they? Ans) Three scripting language elements are there: a)      declarations, b)      scriptlets, c)       expressions.

Area under curve , what will be the logic? in C program #include ...

what will be the logic? in C program #include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; int numtraps; m

Describe the concept of constructor chaining, Question: A new software ...

Question: A new software engineer has joined Axistex Ltd. The systems analyst informs him that the organisation works with different operating system. The HR department works w

For what purposes ftp is used in networks, For what purposes FTP is used in...

For what purposes FTP is used in networks? FTP is known as file transfer protocol it is basically used to download or upload files / data to a remote computer.

Relate in brief - microsoft vs java, Relate in brief - Microsoft vs Java ...

Relate in brief - Microsoft vs Java Microsoft hates Java, as a Java program (portable) isn't tied to any particular operating system. If Java is popular, then programs written

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd