Answer / nidhi,himani

because in java, code is 1st converted into bytecode by the
compiler nd then it is converted into machine code by the
interpreter.

Answer / kuldeep sharma

Java is Platform Independent language it uses Virtual
System (JVM) in an existing operating system to run
programs.
The JVM itself is not Platform independent it is platform
dependent. but its functionality is same for all verison of
JVM for different OSs.

The Source Code of a Java Program is compiled to avail the
advantages of compiler like fast development, i mean all
the errors are checked and displayed by the compiler at once
(in 99.99% cases) to make the code error free.

An error free Java Code is converted into BYTECODE ;
directly understood by the JVM(for all OSs).

Now consider we compiled a.java >> a.class on linux, the
a.class is portable and runnable on other OS like Windows
because class files are fun by JVM but not by the OSs that
why we can say
Java is platform Independent.

Answer / rinky

If a source code is written in C,then after compilation platform dependent native code is generated which is specific to the platform and whenever if you want to execute the same source code into different platform you have to recompile the program which is wastage of time.
srcprogram-->compile-->platform1---->platform native code
srcprogram-->compile-->platform2-->platform2 native code
But coming to Java,when you compile your source code ,an intermediate code is generated(.class file)which is common to all the platforms and you can execute the .class file on any platform with the help of jvm to generate native code of the specific platform.

src prg(.javafile)-->compile(on any platform Xplatform)-->bytecode(.classfile)-->jvm(execute on)-->platform(p1 or p2...or pn)(to get native code)
that is what java's passion compile once run anywhere

Answer / dhana

in java code is complied by the complier at that time code
is convered into byte code after that JVM can convert the
byte code instructions into Machine code instructions.

Answer / ershad md sk

In C Lang Our program is directly Converted into
Executable code which is a Not portable..& it is Machine
Specific..in JAVA first .class file is Converted into .java
File And the Interpreter wil generate a intermediate Code
that is BYTE CODE..Which is Machine Independent...it has 0%
protability Issue............

What is lambda in java?

0 Answers  

Draw a UML class diagram for the code fragment given below: public class StringApplet extends Applet { private Label sampleString; private Button showTheString; private ButtonHandler bHandler; private FlowLayout layout; public StringApplet() { sampleString = new Label(" "); showTheString = new Button (" Show the String"); bHandler = new ButtonHandler(); layout = new FlowLayout(); showTheString.addActionListener(bHandler); setLayout(layout); add(sampleString); add(showTheString); } class ButtonHandler implements ActionListener { public void actionPerformed(ActionEvent e) { samplestring.setText("Good Morning"); } } } Note: The methods need not be indicated on the diagram.

0 Answers  

How can you say HashMap is syncronized?

14 Answers   Arete, IBM,

How to perform merge sort in java?

0 Answers  

What is the use of parseint in java?

0 Answers  

Accenture NJ mostly ask question on Collection like 1)How to sort Objcts and how treeset sort them 2)Explain mechanism of Hashcode finding in Java 3)Name some of the Sorted collection.

2 Answers   Accenture,

Explain the differences between public, private, protected and static?

4 Answers  

What is the size of arraylist in java?

0 Answers  

How do you reverse sort in java?

0 Answers  

What is the return type of a program?s main() method?

3 Answers  

as we know a static method could access static data and static method only. then how could main method call the object of aclass which is not static and other non static data

1 Answers  

What does the “final” keyword mean in front of a variable? A method? A class?

0 Answers