The Java language will not output a double type in scientific notation

<span style= "FONT-SIZE:18PX;" >double Double1 = 1234567899.899;decimalformat DecimalFormat = new DecimalFormat ("#,# #0.00");// Format Settings System.out.println ("--------" + Decimalformat.format (double1)); System.out.println (Double1);</span>

In the Java language, how can I output a double type without scientific notation? Take a look at this example above, all to two different results. The reason is that the first result, we constrain the double output representation method.

The Java language will not output a double type in scientific notation