"Java" Java processing result exception for double addition

• Mode One (rounding): two decimal places reserved

1 Double   F   =   111231.5585;   2 BigDecimal   b   =   new   BigDecimal (f);   3 Double   F1   =   B.setscale (2,   bigdecimal.round_half_up). Doublevalue ();  

• Way two:

1 java.text.DecimalFormat   df   =new   java.text.DecimalFormat ("#.00");   2 Df.format (the number you want to format);

• • Cases:

    1 New Java.text.DecimalFormat ("#.00"). Format (3.1415926)

    #.00 represents two decimal places #.0000 four decimal places and so on ...

• Way three:

1 double d = 3.1415926; 2 String result = string. Format ("%.2f");

• • %.2f%. Indicates that any number of digits before the decimal point 2 indicates that the result of the two-bit decimal format is F for floating-point
• Detailed reference: http://www.jb51.net/article/46010.htm

"Java" Java processing result exception for double addition