JAVA Double removes scientific count "E"

When the value of a double is large, the displayed result becomes a scientific notation with E, which is not easy to read when the data in the report is displayed, and E is removed to display the original data

public static void Main (string[] args) {

Double num=123456789456.12;

SYSTEM.OUT.PRINTLN (num);

}

Output results: 1.2345678945612E11

Method: BigDecimal

Add a line of code:

public static void Main (string[] args) {
Double num=123456789456.12;
BigDecimal bg=new BigDecimal (num+ "");
SYSTEM.OUT.PRINTLN (BG);

}

Output results: 123456789456.12

JAVA Double removes scientific count "E"