Mega Code Archive
Write and read back binary data
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using System;
using System.IO;
class MainClass {
public static void Main() {
BinaryWriter dataOut;
BinaryReader dataIn;
int i = 10;
double d = 1.56;
bool b = true;
try {
dataOut = new BinaryWriter(new FileStream("testdata", FileMode.Create));
}
catch(IOException exc) {
Console.WriteLine(exc.Message + "\nCannot open file.");
return;
}
try {
Console.WriteLine("Writing " + i);
dataOut.Write(i);
Console.WriteLine("Writing " + d);
dataOut.Write(d);
Console.WriteLine("Writing " + b);
dataOut.Write(b);
Console.WriteLine("Writing " + 12.2 * 7.4);
dataOut.Write(12.2 * 7.4);
}
catch(IOException exc) {
Console.WriteLine(exc.Message + "\nWrite error.");
}
dataOut.Close();
Console.WriteLine();
try {
dataIn = new BinaryReader(new FileStream("testdata", FileMode.Open));
}
catch(FileNotFoundException exc) {
Console.WriteLine(exc.Message + "\nCannot open file.");
return;
}
try {
i = dataIn.ReadInt32();
Console.WriteLine("Reading " + i);
d = dataIn.ReadDouble();
Console.WriteLine("Reading " + d);
b = dataIn.ReadBoolean();
Console.WriteLine("Reading " + b);
d = dataIn.ReadDouble();
Console.WriteLine("Reading " + d);
}
catch(IOException exc) {
Console.WriteLine(exc.Message + "Read error.");
}
dataIn.Close();
}
}
Writing 10
Writing 1.56
Writing True
Writing 90.28
Reading 10
Reading 1.56
Reading True
Reading 90.28
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