java double 2 decimal places

This article mainly introduces the Java method to keep the double type two decimal places, please refer to the use of itCopy CodeThe code is as follows:Mport Java.text.DecimalFormat;DecimalFormat df = new DecimalFormat ("##### #0.00");Double D1 = 3.2

Java: Rounding the double value to five, retaining the two decimal places, double rounding to five1. Functions The double value in the program is accurate to the two digits after the decimal point. It can be rounded up or truncated. For example, if

Java keeps a double of two decimal places in a multi-method Java reserved Two-bit decimal mport Java.text.DecimalFormat; DecimalFormat DF=NewDecimalFormat ("##### #0. XX"); DoubleD1 =3.23456 DoubleD2 =0.0;DoubleD3 =2.0;d F.format (D1); Df.format (D2

Java rounded to reserved decimal places, java rounded to decimal places // Method 1: Double f = 3.1516; BigDecimal B = new BigDecimal (f ); Double f1 = B. setScale (2, BigDecimal. ROUND_HALF_UP). doubleValue ();   // Method 2: New java. text.

1. functionThe double value in the program is accurate to two digits after the decimal point. Can be rounded or truncated directly.For example: Enter 12345.6789, the output can be 12345.68 or it can be 12345.67. As to whether rounding is required,

using Java to realize the reciprocal mechanism between decimal and binary decimal This blog mainly describes the use of Java to achieve decimal and binary decimal number of the mutual transfer (do not invoke Java-brought functions). Later may use

Packagecom.clzhang.sample;ImportJava.math.BigDecimal;ImportJava.math.RoundingMode;ImportJava.text.DecimalFormat;ImportJava.text.NumberFormat; Public classDoubletest {/*** Keep Two decimal places, rounding up an old-fashioned way *@paramd *@return

Mode one:RoundedDouble F = 111231.5585;Rounding to keep two decimal digits, you can use the Format function of string,The method is as follows: Copy Code code as follows: System.out.println (String.Format ("%.2f", X1));

Reprint:http://blog.csdn.net/wj_j2ee/article/details/8560132Java retains two-bit decimal questions:Way One:RoundedDouble F = 111231.5585;BigDecimal B = new BigDecimal (f);Double f1 = B.setscale (2, bigdecimal.round_half_up). Doublevalue ();Keep two

Import Java.text.DecimalFormat; DecimalFormat DF = new DecimalFormat ("##### #0."); Double D1 = 3.23456 double d2 = 0.0; Double d3 = 2.0; Df.format (d1); Df.format (D2); 3 results were: 3.23 0.00 2.00 Java preserves two-bit