Is Long the same as double Java?
Is Long the same as double Java?
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The terms "Long" and "Double" are often used interchangeably in programming, particularly when working with floating-point numbers in Java. However, they have slightly different meanings.
In Java, a double is a primitive type that represents a 64-bit floating-point number, which can hold values up to 1.7976931348623157E308. It's a standard IEEE 754 double-precision floating-point format.
On the other hand, a Long in Java is a class that represents a 64-bit signed integer, ranging from -9,223,372,036,854,775,807 to 9,223,372,036,854,775,806. It's equivalent to a long integer in many programming languages.
While both types can store large values, they serve different purposes:
Usedouble for floating-point arithmetic and scientific calculations that require high precision and accuracy. Use Long for storing or manipulating large integers, such as IDs, timestamps, or counters.
To illustrate the difference, consider this example:
public class Example {
public static void main(String[] args) {
double doubleValue = 3.14; // a double-precision floating-point number
Long longValue = 1234567890L; // a 64-bit signed integer
System.out.println("Double value: " + doubleValue);
System.out.println("Long value: " + longValue);
}
}
In this example, doubleValue is a double with the value 3.14, while longValue is a Long with the value 1234567890.
In summary:
Usedouble for floating-point arithmetic and scientific calculations. Use Long for storing or manipulating large integers.
Remember, while both types can store large values, they are fundamentally different in terms of their purpose, precision, and usage.
What type is long java w3schools
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