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Use built in methods to extract, remove, or replace data in strings.

Learning objectives

• Identify the position of a character or string inside of another string.
• Extract portions of strings.
• Remove portions of strings.
• Replace values in strings with different values.

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Prerequisites

• Declare string, numeric, and Boolean variable types in C#.
• Perform basic string and numeric operations in C#.
• Write simply formatted string and numeric information to the console.

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Prerequisites

• Assign and retrieve values by using variables, including array variables, in C#.
• Manipulate variable data to modify its type and appearance in C#.
• Execute built-in functionality available from code libraries in your C# applications.
• Develop if-elseif-else and foreach statements in your C# applications.
• Develop, build, and run C# code using Visual Studio Code.
• Perform System.Console I/O operations.

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Use C# to format strings with white space, special characters, padding, and alignment. Give context to numeric data like currency, percentages, and numbers with decimals.

Learning objectives

• Use character escape sequences to add tabs, new lines, and Unicode characters to our strings.
• Create verbatim string literals, and escape common characters like backslash ( \ ) and double-quotes ( “” ).
• Merge templates with variables using composite formatting and string interpolation.
• Include various format specifiers for percentages, currency, and numbers.

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Use powerful helper methods to manipulate and control the content of arrays.

Learning objectives

• Sort and reverse the order of array elements.
• Clear and resize the elements of an array.
• Split a string into an array of strings or characters (chars).
• Join array elements into a string.

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Take control of the data in your applications, knowing when to apply the correct technique to change data types as needed.

Learning objectives

• Use the casting operator to cast a value into a different data type.
• Use conversion methods to convert a value into a different data type.
• Guard against the loss of data when performing a cast or conversion operation.
• Use the TryParse() method to safely convert a string into a numeric data type.

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Gain experience developing a console app that implements selection and iteration statements to achieve app specifications.

Learning objectives

In this module, you’ll practice how to:

• Use Visual Studio Code to develop a C# console application that uses a combination of selection and iteration statements to implement logical workflows in accordance with supplied application data and user interactions.
• Evaluate the underlying conditions and make an informed decision when choosing between if-elseif-else and switch statements, and between foreach, for, while, and do iteration statements.
• Scope variables at an appropriate level within an application.

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Learn the operators and techniques required to evaluate and compare values in your decision statements.

Learning objectives

After you complete this module, you’ll be able to:

• Use operators to create Boolean expressions that test for comparison and equality.
• Use built-in methods to the string class to perform better evaluations on strings.
• Use the negation operator to test for the opposite of a given condition.
• Use the conditional operator to perform an inline evaluation.

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Demonstrate your ability to develop a console app that implements selection and iteration statements to achieve app specifications.

Learning objectives

In this module, you’ll demonstrate your ability to:

• Use Visual Studio Code to develop a C# console application that uses a combination of selection and iteration statements to implement logical workflows in accordance with supplied application data and user interactions.
• Evaluate the underlying conditions and make an informed decision when choosing between if-elseif-else and switch statements, and between foreach, for, while, and do iteration statements.
• Scope variables at an appropriate level within an application.

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Use the do-while and while statements to iterate as long as a Boolean expression evaluates to true.

Learning objectives

After you complete this module, you’ll be able to:

• Write code that uses the do-while statement to iterate through a code block
• Write code that uses the while statement to iterate through a code block
• Use the continue statement to step directly to the Boolean evaluation

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