staticStringtoHexString(double d) 返回double参数的十六进制字符串表示形式。 StringtoString() 返回此Double对象的字符串表示形式。 staticStringtoString(double d) 返回double参数的字符串表示形式。 staticDoublevalueOf(double d) 返回表示指定的d
BigDecimal result = value.setScale(digit, RoundingMode.HALF_UP); returnresult.toString(); } 接下来外部分别调用上面的双精度数格式化方法formatWithDouble,以及大小数格式化方法formatWithBigDecimal,具体的测试调用代码如下所示: 1 2 3 4 5 6 7 8 doublenormalDecimal =19.895; // 保留双精度数的小数点后面...
*@return*/publicstaticStringvalueToThousandFormat(Object value, Integer decimalDigit, Boolean decimalIsFillZero){if(null== value ||"".equals(value)) {return""; }vardecimalValue=BigDecimal.ZERO;// Double类型会出现科学计数,要处理一下,Optional也要处理,不能直接转换// 若有其他类型需要处理,可以自己添...
* @see java.lang.Double#toString(double) */ public static String valueOf(double d) { return Double.toString(d); } 而Double自身的toString方法使用FloatingDecimal来对数字进行格式化,代码如下: public static String toString(double d) { return new FloatingDecimal(d).toJavaFormatString(); } 该方法注释...
add0Format(double num, int integerDigit, int fractionDigit) { StringBuilder rule = new StringBuilder(); if (integerDigit <= 0) { rule.append("#"); } else { for (int i = 0; i < integerDigit; i++) { rule.append("0"); } } if (fractionDigit > 0) { rule.append("."); ...
java千分位数值转成double 数字转成千分位 js方式 ** 12,345,678 从后往前每三位数字都用逗号隔开, 思路:先将数字转化为字符串toString() 或者String(),再将字符串转化为数组用split()方法,然后使用reverse()方法翻转数组,因为只有翻转数组后我们才好处理,再每隔三个元素插入一个逗号,最后再将数组翻转过来再...
String str = Integer.toString(num); 基本数字类型 这方法就更多了,除了上述调用各自包装类型的toString(num)方法,还有 //1 String.valueOf(); int num = 666; String str = String.valueOf(num); //2.String的format方法 int num = 666; String str = String.format("%d", num); ...
Next, the exponent is represented by "p" followed by a decimal string of the unbiased exponent as if produced by a call to Integer#toString(int) Integer.toString on the exponent value. If m is a double value with a subnormal representation, the significand is represented by the characters...
// Print out a number using the localized number, integer, currency, // and percent format for each locale Locale[] locales = NumberFormat.getAvailableLocales(); double myNumber = -1234.56; NumberFormat form; for (int j = 0; j < 4; ++j) { System.out.println("FORMAT"); for (int...
For a canonical representation of the value, use Float.toString(float) or Double.toString(double) as appropriate. If the ',' flag is given, then an FormatFlagsConversionMismatchException will be thrown. 'E' '\u0045' The upper-case variant of 'e'. The exponent symbol will be 'E' (...