Re: ClassCastException problem with 2D float array serialization
erenay wrote:
Hi, I get an "java.lang.ClassCastException: [[D" with the following
code:
FileOutputStream fout= new FileOutputStream("C:\\A.txt");
ObjectOutputStream out= new ObjectOutputStream(fout);
....
float[][] vocabArray = new float[voc_cnt][groupNum];
....
out.writeObject(vocabArray);
out.close();
....
float[][] vocabArray2 = new float[voc_cnt][groupNum];
FileInputStream fin5 = new FileInputStream("C:\\A.txt");
ObjectInputStream oin5 = new ObjectInputStream(fin5);
vocabArray2 = (float[][])(oin5.readObject()); //It gives error here
oin5.close();
What you have written appears to be fine. However, is that exactly what
you have tried, and are you sure that you wrote over your file?
Here's some complete code I wrote. Does that work for you?
import java.io.*;
class Save {
public static void main(String[] args) throws Exception {
OutputStream fileOut = new FileOutputStream("file.ser");
ObjectOutputStream out = new ObjectOutputStream(fileOut);
float[][] array = new float[10][20];
out.writeObject(array);
out.close();
}
}
class Load {
public static void main(String[] args) throws Exception {
InputStream fileIn = new FileInputStream("file.ser");
ObjectInputStream in = new ObjectInputStream(fileIn);
float[][] array = (float[][])in.readObject();
in.close();
}
}
Tom Hawtin
--
Unemployed English Java programmer
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