float f = 0.0001f;
DecimalFormat formate = new DecimalFormat("0.#####");
String fd = formate.format(f);
System.out.println(fd);
DecimalFormat formate = new DecimalFormat("0.#####");
String fd = formate.format(f);
System.out.println(fd);
java.text.DecimalFormat df=new java.text.DecimalFormat("#.####");
System.out.println(df.format(f));
java.text.DecimalFormat df=new java.text.DecimalFormat("#.####");
out.println(df.format(f));
System.out.println(a);
String w=String.valueOf(a);
System.out.println(w);
NumberFormat c=NumberFormat.getInstance();
c.setMinimumFractionDigits(4);
System.out.println(c.format(a));