Android - read a C structure into android

Question

I have a C structure with 2 attributes, say the content and the val How do I read this into an android file? Does android support any structure?

My structure is like

struct data[] = { {"aakash", 2260}, {"anuj", 1}}

How to read such structures in android?

@TrafalgarLaw I dont know much about JNI ? Can you please elaborate on how can i read C structure in android? — Aakash Anuj
– Aakash Anuj, Commented Nov 28, 2012 at 6:09
This will help you. Please let me know any other issues. stackoverflow.com/questions/5771366/reading-a-simple-text-file — Akshay Joy
– Akshay Joy, Commented Nov 28, 2012 at 6:41

Ofir Luzon · Accepted Answer · 2012-11-28 14:59:42Z

1

For Android supports Java Platform. Structure is not belong to Java. You Can Achieve the Same with Pojo Classes.

Public Class MyData { private String username; private double points; public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public double getPoints() { return points; } public void setPoints(double points) { this.points = points; } public MyData(String username,double points) { this.username = username; this.points = points; } } MyData[] data = new MyData[2]; data[0]= new MyData("aakash", 2260); data[1]= new MyData("anuj", 1);

edited Nov 28, 2012 at 14:59

Ofir Luzon

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answered Nov 28, 2012 at 6:16

Akshay Joy

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4 Comments

Aakash Anuj Over a year ago

My database is very large..i cannot use classes for it...isn't it?

Akshay Joy Over a year ago

Here there are two Fields, so you can go ahead with Pojo classes, as I explained. How come Database is related in this context.

Aakash Anuj Over a year ago

I have my data in a file, so how to I read the file... The file is in the from "aakash" 12 \n "anuj" 6 \n and so on

Akshay Joy Over a year ago

InputStream inputStream = getResources().openRawResource(R.raw.toc); // or you can use AssestManager to open File like this /* AssetManager am = context.getAssets(); InputStream is = am.open("test.txt"); */ System.out.println(inputStream); ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); int i; try { i = inputStream.read(); while (i != -1) { byteArrayOutputStream.write(i); i = inputStream.read(); } inputStream.close(); } catch (IOException e) { e.printStackTrace(); }

st0le · Accepted Answer · 2012-11-28 11:50:23Z

If the structure is as simple as a String and an Integer, and you really wanna write to file using C, read using Java. You can use a Plain Text File, Use a CSV format to store the values. It'll be easy to read/write in both languages.

You can't store those objects into a binary file and have Java read it effortlessly. Although, If the file was created using Java, then it should be easy.

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