创建BigDecimal
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| BigDecimal BigDecimal(double d); BigDecimal BigDecimal(String s); static BigDecimal valueOf(double d);
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| BigDecimal bd1 = new BigDecimal(0.01); BigDecimal bd2 = new BigDecimal("0.01"); System.out.println("bd1 = " + bd1); System.out.println("bd2 = " + bd2);
结果: bd1 = 0.01000000000000000020816681711721685132943093776702880859375 bd2 = 0.01
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参考:https://stackoverflow.com/questions/7186204/bigdecimal-to-use-new-or-valueof