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public static void mainout(String[] args)
{
try{
ObjectOutputStream output=new ObjectOutputStream(new FileOutputStream("e:/bishe/java1.dat"));
double a=-0.5;
double b=6.5;
double c=286;
output.writeDouble(a);
output.writeDouble(b);
output.writeDouble(c);
output.close();
}
catch(IOException e){
System.out.println("problem with output from file.");
}
}