Αποτελέσματα Αναζήτησης
Types of Control Flow Flow of control through any given function is implemented with three basic types of control structures: I Sequential: Default mode. Statements are executed line by line. I Selection: Used for decisions, branching { choosing between 2 or more alternative paths. I if I if - else I switch I conditional statements
Java's branching control uses the if-else structure (http://docs.oracle.com/javase/tutorial/java/nutsandbolts/if.html) for selecting which blocks of code should run.
1. Selection Statement. Like all high-level programming languages, Java provides selection statements: statements that let you choose actions with alternative courses. The program can decide which statements to execute based on a condition. Selection statements use conditions that are Boolean expressions.
4.4 Control Structures • Java has a sequence structure “built-in” • Java provides three selection structures – if – If…else – switch • Java provides three repetition structures – while – do…while – do • Each of these words is a Java keyword
Making Selections. The “if” keyword is always followed by parentheses. The expression in the parentheses must evaluate to a boolean. The statement can be a single statement or a block. Safer as a block. if (booleanExpression) statement; if (booleanExpression) { statement(s); }
Using Selection: the CoinExample Class • if statement based on using a randomly generated number to represent a coin being flipped • The Java Math class random operation –Returns a random double >= 0.0 and < 1.0 • Use random number in if statement 10 double randomNumber = Math.random(); if (randomNumber < 0.5) {
11 Ιουν 2024 · In this tutorial, we’ll explore control structures in Java. There are three kinds of control structures: Conditional Branches, which we use for choosing between two or more paths. There are three types in Java: if/else/else if, ternary operator and switch.
