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| package BigDecimal_package; | |
| import java.math.BigDecimal; | |
| import java.math.RoundingMode; | |
| public class BigDecimal_demo2 { | |
| public static void main(String[] args) { | |
| /* | |
| public BigDecimal add (BigDecimal val) 加法 | |
| public BigDecimal subtract (BigDecimal val) 减法 | |
| public BigDecimal multiply (BigDecimal val) 乘法 | |
| public BigDecimal divide (BigDecimal val) 除法 | |
| public BigDecimal divide (BigDecimal val, 精确几位, 舍入模式) 除法 | |
| */ | |
| //1、加法 | |
| BigDecimal bd1 = BigDecimal.valueOf(10.0); | |
| BigDecimal bd2 = BigDecimal.valueOf(3.0); | |
| BigDecimal bd3 = bd1.add(bd2); | |
| System.out.println(bd3); | |
| //2、减法 | |
| BigDecimal bd4 = bd1.subtract(bd2); | |
| System.out.println(bd4); | |
| //3、乘法 | |
| BigDecimal bd5 = bd1.multiply(bd2); | |
| System.out.println(bd5); | |
| //4、除法 | |
| BigDecimal bd6 = bd1.divide(bd2,2, RoundingMode.HALF_UP); | |
| System.out.println(bd6); | |
| } | |
| } | |