Why declaring a variable as string?

[Dhivya rajagopal]

Hello, java takes everything as string, then why we declaring a variable as string

ie String s="java";

[Paul Clapham]

Dhivya rajagopal wrote:java takes everything as string

I don't understand this statement. Could you explain it?

[fred rosenberger]

Java most certainly does NOT take everything as a string.

Arguments passed in from the command line are strings, and passed into a String array. However, once you are in a method, you can declare a variable of any type:

int a = 7;

Float f = new Float(2.7);

etc.

[Ganesh Akondi]

Please reframe the question divya.
As Fred said, Arguments passed in from the command line are strings, and passed into a String array (public static void main(String args[]))
We have different types of data types you can use for certain operations.
if you want to add two numbers that should be 2+3 not "2"+"3" right ??
(even though java has capability of conversion, for the time being like Integer.parseInt("2"))

[Campbell Ritchie]

You can of course write "2"+"3"

public class TwoPlusThreeDemo
{
    public static void main(String[] args)
    {
        if (args.length < 2)
        {
            System.err.println("Two command line arguments required.");
        }
        else
        {
            System.out.println(args[0] + args[1]);
        }
    }
}

campbell@campbellsComputer:~/java> java TwoPlusThreeDemo 2 3

Try it and see
But you won't get very far with "2"-"3"

[Dhivya rajagopal]

Hello, while getting input at the console window, we used to write

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
int n= Integer.parseInt(br.readLine);

The above is used to get an integer value. My idea is as java takes everything as string, we are converting it to integer and getting a value.
If i am wrong, Let me know. Can you please explain it.

Thank you in advance.

[Paul Clapham]

Aha. So when you said "Java takes everything as string" you were really just thinking of BufferedReader and its ability to read lines from a file into String variables. There's a long way between "Java" and "BufferedReader"; you really should try to be a little bit more precise.