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package com.me.basic;import java.math.BigDecimal;import java.text.DecimalFormat;public class ScientificCounting { public static void main(String[] args) { funcOne(); System.out.println("============"); funcTwo(); } public static void funcOne(){ Double double1 = 12345678966.123456789; //格式化设置 DecimalFormat decimalFormat = new DecimalFormat("#,##0.00"); System.out.println(decimalFormat.format(double1)); System.out.println(double1); } public static void funcTwo(){ Double dd = 12345678966.123456789; BigDecimal bigDecimal = new BigDecimal(dd.toString()); System.out.println(bigDecimal); System.out.println(dd); }}
12,345,678,966.121.2345678966123457E10============12345678966.1234571.2345678966123457E10
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