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The Double class in Java is a wrapper class for the primitive data type double. It provides several useful methods for working with double values, such as parsing, comparing, and converting to other data types.
This guide covers various methods available in the Double class. Each method is described in simple terms to help beginners understand how to use them. These methods enable you to perform operations like checking if a double is infinite or NaN, converting to different data types, and more.
For more detailed information, please refer to the official Java SE Documentation and additional resources on Java Wrapper Classes Tutorial.
Java Double Class Methods
The table below contains various methods of the Java Double class, each with a link to a detailed explanation, examples, and real-world uses. Click on the method names to learn more about how to use them effectively in your applications.
| Method | Description |
|---|---|
| byteValue() | Converts this Double to a byte. |
| doubleValue() | Returns the value of this Double as a double. |
| floatValue() | Returns the value of this Double as a float. |
| isInfinite() | Checks if this Double is infinitely large in magnitude. |
| isNaN() | Checks if this Double is Not-a-Number (NaN). |
| longValue() | Returns the value of this Double as a long. |
| max() and min() | Returns the greater or smaller of two double values. |
| parseDouble() | Parses the string argument as a double. |
| shortValue() | Returns the value of this Double as a short. |
| sum() | Returns the sum of two double values. |
| toString() | Returns a string representation of this Double. |
| valueOf() | Returns a Double instance representing the specified double value. |
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