Why no output comes when we write ("x={0};y={1}",y,x)

Answer 1

Hi,

Have you assigned the value for variables x and y. We need to assign the values to declared variables.
e.g.

int x = 5; int y = 4; //variables has declared and values are assigned to the variables.

Console.WriteLine("x={0};y={1}",y,x); //output will be x=4;y=5

I hope it's clear.

Answer 2

thanks pawan, but the x=4;y=5 is the output of the which we entered in the Console.WriteLine("x={0};y={1})",y,x);. so only one semicolon ; will be there in the output as per mention in the Console.WriteLine();

Answer 3

u forgot ; at last of the line

Answer 4

why we assign x = {0}

Answer 5

{0} is a placeholder. for example
int x = 5; int y = 4; //value assigned to variables
Console.WriteLine("x={0};y={1}",x,y);

instead of this we can use concatenate see the below example

Console.WriteLine("x="+ x + "; y="+ y);

using the placeholder instead of concatenate is much simple.

I hope its clear.

Answer 6

what is the purpose of the x,y at the end of the writeline command ("x={0};y={1}",x,y); is it declaring the order of the variables to be used?