Select the correct answerWhich of the following is the advantage of BigDecimal over double?OptionsGarbage creationMemory usageSyntaxPrecisio
Question
Select the correct answer
Which of the following is the advantage of BigDecimal
over double
?
Options
- Garbage creation
- Memory usage
- Syntax
- Precision
Solution
Break Down the Problem
- Identify the options related to BigDecimal and double.
- Analyze the advantages of BigDecimal.
Relevant Concepts
- BigDecimal is a class in Java used for high-precision calculations and is particularly useful in financial applications.
- Double is a primitive data type in Java that is used for representing decimal numbers but can lead to precision issues.
Analysis and Detail
-
Garbage creation: This generally refers to how memory is managed. BigDecimal can produce garbage due to its immutable nature, where each modification results in a new object. However, this is not a significant advantage.
-
Memory usage: BigDecimal uses more memory than double, as it stores the exact representation of the number rather than a floating-point approximation. Therefore, this cannot be considered an advantage.
-
Syntax: Both types have different syntax for initialization and usage. However, this does not pertain to an advantage of accuracy or utility.
-
Precision: The primary advantage of BigDecimal over double is precision. BigDecimal can handle arbitrary precision and is not subject to the rounding errors inherent in floating-point representations like double.
Verify and Summarize
- The most significant advantage of BigDecimal is its ability to handle very large and very small numbers with complete precision, whereas double may lose precision due to rounding.
Final Answer
Precision is the advantage of BigDecimal over double.
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To create an instance of BigDecimal for 454.45, use _____A. BigInteger(454.45);B. new BigInteger(454.45);C. BigInteger("454.45");D. new BigDecimal("454.45");
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