Question: What is the size of byte data type in Java?

Data Type Size Description
byte 1 byte Stores whole numbers from -128 to 127
short 2 bytes Stores whole numbers from -32,768 to 32,767
int 4 bytes Stores whole numbers from -2,147,483,648 to 2,147,483,647
long 8 bytes Stores whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807

What is byte data type in Java?

byte: The byte data type is an 8-bit signed two’s complement integer. It has a minimum value of -128 and a maximum value of 127 (inclusive). … In Java SE 8 and later, you can use the int data type to represent an unsigned 32-bit integer, which has a minimum value of 0 and a maximum value of 232-1.

What is the size of data types in Java?

Size of char: 2 bytes. Size of float: 4 bytes. Size of double: 8 bytes. Note that size of primitive types in Java is always the same.

What data type is 0 in Java?

1- Overview of data types

Data type Default Value Size
byte 1 byte
short 2 byte
int 4 byte
long 0L 8 byte

What are the four main data types?

The data types to know are:

  • String (or str or text). Used for a combination of any characters that appear on a keyboard, such as letters, numbers and symbols.
  • Character (or char). Used for single letters.
  • Integer (or int). Used for whole numbers.
  • Float (or Real). …
  • Boolean (or bool).
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What are the data types?

6 Types of Data in Statistics & Research: Key in Data Science

  • Quantitative data. Quantitative data seems to be the easiest to explain. …
  • Qualitative data. Qualitative data can’t be expressed as a number and can’t be measured. …
  • Nominal data. …
  • Ordinal data. …
  • Discrete data. …
  • Continuous data.

What are the 8 data types in Java?

Primitive types are the most basic data types available within the Java language. There are 8: boolean , byte , char , short , int , long , float and double . These types serve as the building blocks of data manipulation in Java.

What is the largest data type in Java?

The largest integer number that a long type can represent is 9223372036854775807. If we deal with even larger numbers, we have to use the java.


Type Size Range
int 32 bits -2,147,483,648 to 2,147,483,647
long 64 bits -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807

What is size of string in Java?

Below are the various methods to get the length or size of Strings in Java: string. length(): The length() method is a method which is applicable for string objects. length() method returns the number of characters presents in the string. The length() method is applicable for string objects but not for arrays.

Why integer is 4 bytes in Java?

An unsigned int is also 16-bits, but from 0-65535 since it’s unsigned. The fact that an int uses a fixed number of bytes (such as 4) is a compiler/CPU efficiency and limitation, designed to make common integer operations fast and efficient.

Can we convert int to byte in Java?

Java Integer byteValue() method

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lang package converts the given Integer into a byte after a narrowing primitive conversion and returns it. Syntax : public byte byteValue() Return : This method returns the numeric value represented by this object after conversion to byte type.

What is long max value in Java?

The data type: Java long. Long is last primitive type related to int, it is stored in 64 bits of memory, which means it can store more values than integer, stores values from (-263) to (263-1). So the Java long max values are -9,223,372,036,854,775,807 and 9,223,372,036,854,775,808.

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