Question

Suppose int x=5;
double y=3;

Here x, y are varible.
Data type of x is integer
Data type of y is double (Decimal)​

Answer 1

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Step-by-step explanation:

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Answer 2

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Introduction

Let's program

Know data-types

Operators

Input by user

Decide if or else

Loop loop loop

Control your loop

Have your own methods

Get values from method

Array

Characters and string

OOP

Classes and objects

Array of objects

subclass

Constructor overloading

More about methods

Abstract class

File i/o

Use of this

Data Types in Java

What if you are asked what is 2? Some of you will say that it is a number, some will say it is an integer and some will say that it is a digit.

This is exactly what we are going to learn in this section i.e. what type of data (data-type) Java uses.

Most commonly used data types in Java are int (integer), char (character), float (number having decimal), double (number having decimal), String (collection of characters) and boolean (true or false).

First, let's see the following code.

int n;

n = 4;

As discussed earlier, here int n; allocates some space in the memory to the variable 'n'.

n = 4 assigns a value 4 to the variable 'n'.

So, int n is declaring that variable 'n' is an int and allocates some space in the memory to 'n'.

Then n = 4 assigns 4 to 'n'. So, now 'n' is 4.

Thus, if you want to give a character value to 'n', then use char before 'n' (instead of int). Similarly, if we want to give a float or double value to 'x', then use float or double before 'x' respectively.

The following table states different data types along with the maximum and minimum value they can take.

Step-by-step explanation:

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