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Understanding Numeric Data Types in Java

In Java, there are different numeric data types to represent whole numbers(integral) and fractions(floating-point) of different sizes (magnitudes).

The numeric types are the integral types and the floating-point types.

The integral types are byte, short, int, and long, whose values are 8-bit16-bit32-bit and 64-bitsignedtwo’s-complement integers, respectively, and char, whose values are 16-bit unsigned integers representing UTF-16 code units (#3.1).

The floating-point types are float, whose values include the 32-bit IEEE 754 floating-point numbers, and double, whose values include the 64-bit IEEE 754 floating-point numbers.

[Source: Java Language Specification, Primitive Types and Values]

Select all the correct statements given below.

  • int, short, byte and long are floating-point types
  • char values are 16-bit integers
  • double can hold a value larger than the maximum float value
  • long can hold a value greater than the maximum int value

https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html

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