what is java virtual machine
Answers were Sorted based on User's Feedback
Answer / aashish r. wadhokar
java virtual machine also known as JVM.
JVM is a miracle bcoz of which java becomes platform
independent language.
jvm acts as an inrterface betn OS and java program.
as in c lang. program needs to be convert into machine
language(.obj).in the same way java code need to be
translated into .class file (in bytecode)
and then JVM executes thst bytecode(.class file).
and thus java program gets executed by JVM and not by OS.
so java become platform independent.
| Is This Answer Correct ? | 4 Yes | 0 No |
Answer / neha siddiqui
. JVM is stands for java virtual machine
. JVM is popularly known as interprets between java bytecode
and computer operating system
. using a JVM user can run java code on any platform such as.,
unix, linux, windows xp,etc
. A JVM normally reads and executes java statement one at a time
. A JVM can however includes a JIT compiler [Just In Time] with in it
. The Jvm does not know any thing about java programming language
. A JVM only recognize a particular binary format of a file called "Class File"
. A Class file contain Java Virtual Machine instructions.
| Is This Answer Correct ? | 2 Yes | 0 No |
A)JVM convert .class to machine language.
B) JVM is .exe program that is java.exe
C)JVM (Java Virtual Machine) run the java program.
1) JVM check .class code is proper or not (Its check byte
code , virus etc) if .class code is not proper it terminate
the execution.
2) If .class is in proper format then it will start work.
JVM has 5 part:-
1)Method Area
2)Heap Area
3)Java Stacks
4)PC register
5)Native Method Stacks
method area has class code, variables code and method code.
When object is created it store in heap Area.
In our program there will some methods, and its take some
memory for execution and store o/p so this is done in Java
Stacks.
PC register has memory address of every method.
Native Method has Native methods.
3) JVM start program from main(). this is starting point of
JVM in our Program.
JVM also check main method and its argument must be String
type array.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / raju
Java virtual machine is also called JVM.It is used to convert source code in to binary code
| Is This Answer Correct ? | 0 Yes | 3 No |
What is the servletcontext listener and what is JspContext and page context pls tell in simple words.
my interviewer asked me what technical specification you used how to answer that question
In hyderabad, which s/w training center is best for java, other than corejava what r the new tools to learn in java,which tool is best & have current requirement,pls give me information about java to learn ?
what is filter ?
who will give req's to u?. how they send req's to u? . what design documents contains?. when bugs raised on other developer code how to report to them?.(throgh mail or ........). how to retrive 100 recods from dao layer to presentation layer.using which collection?. what is sequence diagram.?.
what is the difference between checked and unchecked Exceptions?
Can any one tell me How to explain bank project desription in interview
How many controlers are there in spring? Plz send me ans
What is a constructor?
What is Visual Source Safe(source control Tool)?
what is mean by hasing and maping in java platform and advantage?
What are the different types of ways where you can iterate over a list? : java collections