Type casting

Hi im really new to understanding the conversion of C to java especially with objects and since java doesnt have objects but classes im trying to figure out.

basically i have a char[1000] in java.
so its just raw data btu i want to convert it into a class i have.

Code:

---

class data{
    char [] name = new char[50];

}
class arrayofdata{
      data [] d = new data(20)
}

---

os is there a way to get the char[1000] into it i keep thnking something liek this should be possible

foo [1000];
arrayofdata gg = new arrayofdata(foo);

Don't try 'converting C to Java'

Learn Java and produce a program that has the same functionality as the original C program.

db

And Java does have objects.

Yeah i meant java doesnt do structs like C does. Im just trying hard to basically once i gather a big chunk of data how can i convert that data to a structure would i just have to do it the brute force where every byte.something = what i want it to be or is there a simple method like C

do you just want to convert the syntax of C to java? or ....


Edit : thnx

The opposite. He wants to convert the syntax of C for usage in his Java application.

@OP: You will be best to brute-force the operation; simply loop through each object in the array and convert it. There is no easy method of conversion of this type as in C/C++.

Quote:

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i have a char[1000] in java.
so its just raw data btu i want to convert it into a class

---

There is no easy way to "convert" bytes into a class object. It requires a class loader.

What is you are trying to do? what is in the 1000 characters? Where are they? In a file?

Code:

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something like this should be possible

foo [1000];
arrayofdata gg = new arrayofdata(foo);

In java:
char[] foo = new char[1000];
 .. fill the 1000 chars with data ???

class ArrayOfData {
  char[] data;
  // constructor
  ArrayOfData(char[] x) {
    data = x;  // copy ref to array
  }
}

ArrayOfData gg = new ArrayOfData(foo);  // create arrayOfData object

---

Sorry for responding late this array of 1000 chars is basically just 1000 data bytes and were transfering them over with jni from a C applications but we want to put them in a java Class structure that follows the protocols of a wmv file. Like header and type and sound and data load then end of data load.....like thats the structure of a wmv file

What java Class structure follows the protocols of a wmv file?
If you are able to create this object, what would you do with it?
What methods/classes would use it?

okay so im kinda new to java then but couldn't i just create one my self like i would in C then or is there standards to making java classes if i was trying to implement structures. I basically trying to do this so when the C data processes the selection sends back a chunk of data in unsigned chars then I need java to descipher that data for a java application

There are 10,000 plus different ways you can make a java class.
What do you want to do with the class that will hold your data?

Quote:

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when the C data processes the selection sends back a chunk of data in unsigned chars then I need java to descipher that data for a java application

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What is the java application? What does "descipher" mean?

I just want a class to represent a C structure without the extra features java has like i dont want a function in the class just data types and my application is juts basically to have a union of a data structure for java even though java doesnt support union they use hierachy but i thought if i could typecast the bulk of data into a class i created it would work out

Why have a class? How about an array?
What are you going to do with the data in a java program?

well the big chuck of data is basically an array of unsigned chars and in the data its giong to be a list of adapters . so thats y if we had a structure we could easily break up the data in parts for each adapter and reconize the first [50] char is one adapter the second [50] char is a different adapter and then list it out in a java gui for the user

Sounds like an array would be the way to store it.

I'd store it in an array as Norm says, but I'd stick that array in a class that has the methods that do the work you are describing, since that data and the procesing you describe are intertwined.

Quote:

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like i dont want a function in the class

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The OP is confused about what s/he wants.

I know.
The idea of a basic struct-substitute in Java seems to occur a lot, but it's not really the Java Way...:)

From what I read of the OPs requirements, there's some data coming in that then needs some work done on it to display on a GUI. I say that work code should be part of the same class that holds this data as an attribute. That's what I'd expect to see.

From their posts, though, I can see they're thinking in terms of having a lump of data that they then pass around...