Why in java the s in String is capital but for other variables it is small.

Answer 1

Classes are capitalized, primitives lower cased.
String is a class, so it starts with a capital.

Answer 2

The primitive datatypes like int, double, float...
Explanation and full list:
https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html

Answer 3

To learn more look for sections on "Data Structures" in various courses.

Answer 4

It is a symbol for an array, a list of elements. Individual elements are called indices. So you could have an array of Strings ["my", "name", "is", "Joe"] and you could manipulate it by calling elements by index. The first element is called the zero index.

Answer 5

Think of an array as a container with a number of small compartments.

Answer 6

each compartment holds a number, or a string.

Answer 7

or even a character.

Answer 8

By declaring an array you arrange your data into compartments your program can access, analyze, or modify.

Answer 9

what are primitives ?

Answer 10

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. Such types serve only one purpose — containing pure, simple values of a kind.

Answer 11

But first play with small arrays, 4 or 5 elements.

Answer 12

There are many times than one learns new things here before in lessons.

Answer 13

Ok I'll try a little more. Arrays and similar structures like ArrayLists and dictionaries are a central, critical part of programming. They let you work on sets of data including very large sets like tracking cars for a Department of Motor Vehicles or tracking health data or something like air quality in lots of different places.

Answer 14

primitives are not capitalized: int, short, boolean, long, char, float, double, byte.

But classes, such as String, Integer and Boolean, are capitalized, by convention.

Answer 15

what is the meaning of this symbol [ ]

Answer 16

i learn now this things thanks very much

Answer 17

okk

Answer 18

because String is class

Answer 19

because in Java everything is considered as an object or primitive type. String in java is a class not a primitive type so it starts with capital 's'. for primitive types we use small alphabets as first alphabet of it's name.

Answer 20

"String" is inbuilt class in java and all inbuilt class names in java start with capital letter