TAILIEUCHUNG - Lecture Fundamentals of computing 1: Lecture 4 - Duy Tan University

Lecture Fundamentals of computing 1: Lecture 4 introduce the conditional expression. This chapter presents the following content: The if statements, the if/else statements, the switch statements. | Lecture Title: Conditional Expression Fundamentals of Computing 1 Agenda The if statements The if/else statements The switch statements ask them, how might the computer store "hi" using binary digits? (some kind of mapping; ASCII) The if statement Executes a block of statements only if a test is true if (test) { statement; . statement; } Example: Agenda The if statements The if/else statements The switch statements ask them, how might the computer store "hi" using binary digits? (some kind of mapping; ASCII) The if/else statement Executes one block if a test is true, another if false if (test) { statement(s); } else { statement(s); } Example: Relational expressions Tests use relational operators: Operator Meaning Example Value == equals 1 + 1 == 2 true != does not equal != true greater than 10 > 5 true = greater than or equal to >= true Note that == tests equality, not = . The = is used for the assignment operator! Misuse of if Scanner console = new Scanner(); ("What percentage did you earn? "); int percent = (); if (percent >= 90) { ("You got an A!"); } if (percent >= 80) { ("You got a B!"); } if (percent >= 70) { ("You got a C!"); } if (percent >= 60) { ("You got a D!"); } if (percent 0) { ("Positive"); } else if (x Nested if/else/if If it ends with else, exactly one path must be taken. If it ends with if, the code might not execute any path. if (test) { statement(s); } else if (test) { statement(s); } else if (test) { statement(s); } .

• Kỹ thuật lập trình
• Fundamentals of computing
• Lecture Fundamentals of computing 1
• Conditional expression
• Relational expressions
• If statements
• Switch statements
• Mobile computing
• Wireless and mobile computing
• Services data
• Wireless communication
• Transmission fundamentals
• Mobile computing transmission fundamentals
• Developing programming skills
• Data type
• Computer vocabulary
• Java programming
• Installing Eclipse
• Basic Java programs
• Structured algorithms
• Data types
• Number primitive types
• Mixing types
• Console output
• Scanner class
• Common pitfalls
• Imported class
• Random question
• Random answer
• Reference semantics
• Arrays for tallying
• Arrays as parameter
• The String class
• Immutable string
• String comparison
• Java OOPs
• Method overloading
• Object Oriented Programming System
• Syntax of inheritance
• Types of inheritance
• Method overriding
• Abstract class
• Abstract method
• Extended interface
• Java Access Modifier
• Static keyword
• Final keyword
• Exception handing
• Multiple catch block
• Nested try statements
• File processing
• Methods of class file
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• Graphic User Interface
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• Inner class
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• Anonymous inner class
• Discovering computers fundamentals
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• Enterprise Computing
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• Frequency period relationship
• Signals for conveying information
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• Programming in C++
• Lecture Programming in C++
• History of electronic computers
• Computing fundamentals
• Memory access
• Central processing unit