C#:Format Printing

C#:String Functions

Contains

Ends With

Equal Strings

Find Position

Formatting

Using Print Formatting

Lower Case

Join Strings

Starts With

String Length

Special Characters

Split a String

Substring

Upper Case

The Write method provides a powerful and succinct mechanism for solving many formatting problems.

The Write method

The Write method takes a formatting string followed by any number of additional parameters. The formatting string includes a number of braces {} - each of these is substituted by the actual parameter given.

{0}  is used for the first parameter
{1}  is used for the second parameter

.

static void doLine(String name, long gdp) { Console.Write("The GDP of {0} is {1}.\n", name, gdp); }

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Using Write to align

We can format output involving fixed and variable components. Usually we align strings to the left and numbers to the right.

In the Write a number of values may follow the format string. These values are used up by {} placeholders in the format string.

The format string is

"Country: {0,-18} GDP: {1,20:n0}\n"

{0,-18}

0 means the first parameter is used here

the minus in -18 means align left,

the 18 means 18 characters are to be used, the s is for string.

{1,20:n0}

1 means the second parameter goes here

20:n0 means use 20 spaces for the number, use 0 decimal places

\n::This starts a new line.

.

static void doLine(String name, long gdp) { Console.Write("Country: {0,-18} GDP: {1,20:n0}\n", name, gdp); }

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test text