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In Java, data types are an essential concept as they define the size and type of values that variables can hold. Java is a statically typed language, meaning that all variables must be declared before they can be used, and the type of data they hold must be specified.
Primitive Data Types
Java has eight primitive data types, which are predefined by the programming language and used to store simple values:
Java Data Types - W3Schools
WEBPrimitive data types - includes byte, short, int, long, float, double, boolean and char; Non-primitive data types - such as String, Arrays and Classes (you will learn more about these in a later chapter)
See results only from w3schools.comExercise
Java Exceptions . Exercise 1 Exercise 2 Go to Java Exceptions Tutorial.
How do I convert Long to byte [] and back in java - Stack Overflow
WEBDec 19, 2010 — from Long to byte[]: byte[] arr = String.valueOf(longVar).getBytes(); from byte[] to Long: long longVar = Long.valueOf(new String(byteArr)).longValue();
- Question & Answer
Primitive Data Types (The Java™ Tutorials - Oracle
- An integer literal is of type long if it ends with the letter L or l; otherwise it is of type int. It is recommended that you use the upper case letter L because the lower case letter l is hard to distinguish from the digit 1. Values of the integral types byte, short, int, and long can be created from int literals. Values of type long that exceed t...
- char: '\u0000'
- float: 0.0f
- double: 0.0d
- long: 0L
Difference Between byte, short, int and long Datatype in Java
WEBJan 19, 2021 — There are eight different primitive data types in JAVA namely byte, short, int, long, float, double, boolean, and char. In primitive data type requires different amounts …
Long (Java Platform SE 8 ) - Oracle Help Center
WEBThe Long class wraps a value of the primitive type long in an object. An object of type Long contains a single field whose type is long. In addition, this class provides several …
Java Primitive Data Types (8) - JavaCamp.org
WEBJava Primitive Data Types (8) A boolean type, a character type, four integer types, and two floating types. [String ] [Wrapper Classes] boolean. The boolean type has two possible …
Long (Java SE 22 & JDK 22) - Oracle
WEBThe number of bytes used to represent a long value in two's complement binary form.
Java Data Types - GeeksforGeeks
WEBSep 23, 2024 — The size of the Long Datatype is 8 bytes (64 bits). Syntax: long longVar; Remember: In Java SE 8 and later, you can use the long data type to represent an unsigned 64-bit long, which has a minimum value …
Introduction to Java Primitives - Baeldung
WEBJan 8, 2024 — Primitive Data Types. The eight primitives defined in Java are int, byte, short, long, float, double, boolean and char. These aren’t considered objects and represent …
Java Primitive Data Types. Size, Range and Default Value of Basic …
WEBThis tutorial explains basic primitive data types (int, long, short, byte, char, boolean, float, double) with their size, range and default value. Java basic data types are predefined …
