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import java.io.DataOutputStream;
import java.io.FileOutputStream;
public class Main {
public static void main(String[] args) throws Exception {
String strFilePath = "C:/Double.txt";
FileOutputStream fos = new FileOutputStream(strFilePath);
DataOutputStream dos = new DataOutputStream(fos);
double d = 1;
dos.writeDouble(d);
dos.close();
}
}
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