Estructura de Selección

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Presentation transcript:

Estructura de Selección COMP 232 Prof. Carlos Rodríguez Sánchez

Flujogramas If selection structure start Price = price * 1.1 F stop Enter Part number & price T Price = price * 1.1 Part number = “AB203” F Display “Price increase” Display part number & price stop

Flujogramas start If/else selection structure A Enter sales T Display commission T Commission = .02 * sales Sales > 1500 stop F Commission = .01 * sales A

Codificando la Estructura de Selección Formato: if (condición) one statement or a block of statements enclosed in braces, to be processed when the condition is true [else one statement or a block of statements enclosed in braces, to be processed when the condition is false]

if (condition) one statement { multiple statements require braces } else multiple statements require braces

Operadores de comparación utilizados en C++ Operator Operation Precedence number < <= > >= == != less than less than or equal to greater than greater than or equal to equal to not equal to 1 2

Ejemplos if statement’s condition Meaning if (quantity < 50) if (age >= 25) if (onhand == targed) if (quantity != 7500)

Using Comparison Operators in a Program start a Enter first number & second number Display first number & second number Assign first number to temp T first number > second number Assign second number to first number stop F Assign temp to second number a