Java ObjectInputStream .readDouble ()
Syntax
ObjectInputStream.readDouble() has the following syntax.
public double readDouble() throws IOException
Example
In the following code shows how to use ObjectInputStream.readDouble() method.
/*from w w w . j ava 2s . co m*/
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
public class Main {
public static void main(String[] args) throws Exception {
double b = 123.234d;
FileOutputStream out = new FileOutputStream("test.txt");
ObjectOutputStream oout = new ObjectOutputStream(out);
// write something in the file
oout.writeDouble(b);
oout.writeDouble(456.789d);
oout.flush();
oout.close();
// create an ObjectInputStream for the file we created before
ObjectInputStream ois = new ObjectInputStream(new FileInputStream(
"test.txt"));
// read and print a double
System.out.println(ois.readDouble());
// read and print a double
System.out.println(ois.readDouble());
ois.close();
}
}
The code above generates the following result.
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