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科学计数法的转换和输出

This commit is contained in:
YuCheng Hu 2020-02-25 10:04:49 -05:00
parent 2e47ddb944
commit 9cdd8ae550
1 changed files with 7 additions and 8 deletions
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15
java-numbers/src/test/java/com/ossez/maths/BigDecimalDemoUnitTest.java
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@ -175,20 +175,19 @@ public class BigDecimalDemoUnitTest {
@Test @Test
public void bigDecimalScientificNotation() { public void bigDecimalScientificNotation() {
// Create a BigDecimal object // Create a BigDecimal object
BigDecimal a; BigDecimal bigNumber;
// Create a String object // Create a String object
String s; String numberStr;
// Set precision to 5 // Set precision to 5
MathContext mc = new MathContext(5); MathContext mc = new MathContext(6);
a = new BigDecimal("4536785E4", mc); bigNumber = new BigDecimal(RandomStringUtils.randomNumeric(10)+"E5", mc);
// apply toString() method // apply toString() method
s = a.toString(); logger.info("{}", bigNumber.toString());
logger.info("{}", bigNumber.toEngineeringString());
// print the result logger.info("{}", bigNumber.toPlainString());
System.out.println(s);
} }
} }