July 13 th.  If/ Else if / Else  Variable Scope  Nested if/else's  Switch statements  Conditional Operator.

Slides:

Advertisements

Similar presentations

Decision Structures - If / Else If / Else. Decisions Often we need to make decisions based on information that we receive. Often we need to make decisions.

Advertisements

©The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Chapter 5 Selection Statements Animated Version.

©The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Chapter 5 Selection Statements.

How SAS implements structured programming constructs

Chapter 13 Control Structures. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display Control Structures Conditional.

Making Choices in C if/else statement logical operators break and continue statements switch statement the conditional operator.

Fundamental Programming Structures in Java: Control Flow, Arrays and Vectors.

1 Chapter Five Selection and Repetition. 2 Objectives How to make decisions using the if statement How to make decisions using the if-else statement How.

Control Structures. Decision Making Structures The if and if…else are all selection control structures that introduce decision-making ability into a program.

CS0007: Introduction to Computer Programming

Pascal Programming Today Chapter 4 1 »Conditional statements allow the execution of one of a number of possible operations. »Conditional statements include:

1 Fall 2007ACS-1903 Chapter 3 Decision Structures The if Statement The if-else Statement The if-else-if Statement Nested if Statements Logical Operators.

1 Fall 2008ACS-1903 Chapter 3 Decision Structures The if Statement The if-else Statement The if-else-if Statement Nested if Statements Logical Operators.

Selection Statements choice of one among several blocks of code Java supports 3 kinds of selection statements: if statement – selects one block or leaves.

The if Statement The code in methods executes sequentially.

If Statements Sections 1.25, Control Structures o All code thus far executes every line of code sequentially o We want to be able to repeat,

The If/Else Statement, Boolean Flags, and Menus Page 180

Tutorial 4 Decision Making with Control Structures and Statements Section A - Decision Making JavaScript Tutorial 4 -Decision Making with Control.

C++ for Engineers and Scientists Third Edition

Slides prepared by Rose Williams, Binghamton University Chapter 3 Flow of Control if-else and switch statements.

TODAY’S LECTURE Review Chapter 2 Go over exercises.

Java Programming Constructs 1 MIS 3023 Business Programming Concepts II The University of Tulsa Professor: Akhilesh Bajaj All slides in this presentation.

Programming Fundamentals. Today’s lecture Decisions If else …… Switch Conditional Operators Logical Operators.

More on Input Output Input Stream : A sequence of characters from an input device (like the keyboard) to the computer (the program running). Output Stream.

CPS120: Introduction to Computer Science Decision Making in Programs.

Selection (if-then-else) Programming Has 3 Types of Control: Sequential (normal): Control of Execution Proceeds One after the Other Selection (if-then-else):

PAGES:51-59 SECTION: CONTROL1 : DECISIONS Decisions.

1. We’ve learned that our programs are read by the compiler in order, from top to bottom, just as they are written The order of statement execution is.

Chapter 3:Decision Structures.  3.1 The if Statement  3.2 The if-else Statement  3.3 The if-else-if Statement  3.4 Nested if Statements  3.5 Logical.

Simple Control Structures IF, IF-ELSE statements in C.

Copyright © 2009 Pearson Education, Inc. Publishing as Pearson Addison-Wesley STARTING OUT WITH Python Python First Edition by Tony Gaddis Chapter 4 Decision.

CPS120: Introduction to Computer Science Decision Making in Programs.

ㅎㅎ logical operator if if else switch while do while for Third step for Learning C++ Programming Repetition Control Structures.

COMPUTER PROGRAMMING. Iteration structures (loops) There may be a situation when you need to execute a block of code several number of times. In general,

Review the following: if-else One branch if Conditional operators Logical operators Switch statement Conditional expression operator Nested ifs if –else.

Conditional Statement Chapter 8. Conditional Statements Are statements that check an expression then may or may not execute a statement or group of statement.

Decision making statements. Decision making statements are used to skip or to execute a group of statements based on the result of some condition. The.

1 2. Program Construction in Java. 2.4 Selection (decisions)

Chapter 3 Functions, Events, and Control Structures JavaScript, Third Edition.

4.1 Object Operations operators Dot (. ) and new operate on objects The assignment operator ( = ) Arithmetic operators + - * / % Unary operators.

Copyright 2003 Scott/Jones Publishing Making Decisions.

Copyright © 2012 Pearson Education, Inc. Chapter 4: Making Decisions.

PEG200/Saidatul Rahah 1.  Selection Criteria › if..else statement › relational operators › logical operators  The if-then-else Statement  Nested if.

Chapter 15 JavaScript: Part III The Web Warrior Guide to Web Design Technologies.

Control statements Mostafa Abdallah

 Control Flow statements ◦ Selection statements ◦ Iteration statements ◦ Jump statements.

CPS120: Introduction to Computer Science Decision Making in Programs.

Control Flow Statements

Lesson thirteen Conditional Statement "if- else" ©

Conditional statements and boolean expressions Arithmetic, relational and logical operators.

Chapter 3. Control Structure C++ Programing. Conditional structure C++ programming language provides following types of decision making statements. Click.

Chapter 7 Control Structures. Java has very flexible three looping mechanisms. You can use one of the following three loops:  while Loop  do...while.

Conditional Statements A conditional statement lets us choose which statement will be executed next Conditional statements give us the power to make basic.

Silberschatz and Galvin  C Programming Language Decision making in C Kingdom of Saudi Arabia Ministry of Higher Education Al-Majma’ah University.

 Very often when you write code, you want to perform different actions for different decisions. You can use conditional statements in your code to do.

C++ for Engineers and Scientists Second Edition Chapter 4 Selection Structures.

IST 210: PHP Logic IST 210: Organization of Data IST2101.

Lecture 3 Selection Statements

Branching statements.

Chapter 3 Selection Statements

Control Structures and Data Files

Chapter 4: Making Decisions.

Control Structures Combine individual statements into a single logical unit with one entry point and one exit point. Used to regulate the flow of execution.

Expressions and Control Flow in JavaScript

Computer Science Core Concepts

Relational Operators.

Chapter 4: Boolean Expressions, Making Decisions, and Disk Input and Output Prof. Salim Arfaoui.

Decisions, decisions, decisions

PROGRAM FLOWCHART Iteration Statements.

Presentation transcript:

July 13 th

 If/ Else if / Else  Variable Scope  Nested if/else's  Switch statements  Conditional Operator

int result = 0; if (x > 0) { result += x; } else { result -= x; }

int result = 0; if ( ) { } else if( ) { } else if … else { } The boolean expressions are evaluated in sequence from top to bottom. The first boolean expression that evaluates to true has its associated expression list executed. Once a single boolean expression is matched, no more are considered.

 The scope of a variable is defined as the section of code in which a variable is defined.  Outside of a variable’s score, the variable does not exist.  The start of a ‘local’ variable’s scope is where it is declared:  int x; //x’s scope begins

if( boolean expression) { … if(boolean expression) { … } else if(boolean expression) { … } else {... }

 The scope a variable defined in the expression list of an if statement is the expression list. int y = 0; if(x > 0) { int x = a * b; y = x - a/b; } Scope of y Scope of x

boolean expression ? expression 1 :expression 2 If the initial boolean expression is true, then expression 1 is executed, if the boolean expression is false then expression 2 is executed. int s = (x < 0) ? -1 : x * x; int max = (a > b) ? a : b; int sign = ( number < 0) ? -1 : ((number == 0) ? 0 : 1);