https://docs.oracle.com/javase/tutorial/java/nutsandbolts/flow.html Language Basics Control Flow Statements 源文件中的语句通常按照出现的顺序从上到下执行。然而,控制流语句通过使用决策制定、循环和分支来分解执行流,使您的程序能够有条件地执行特定的代码块。本节
All control flow statements are associated with a business condition – when true, the code block executes; when false it is skipped. In Java, a control flow statement can be one of the following: A selection statement: if-else or switch-case An iteration statement: for, while or do-...
Java, like most other languages, offers conditional flow logic for the program execution. A set of statements may be executed once, more than once, or skipped altogether, and the decision may be made at runtime (that is, at the time of program execution). This makes programming more ...
3.8. Control Flow Java, like any programming language, supports bothconditional statementsandloopsto determine control flow. We will start with the conditional statements, then move on to loops, to end with the somewhat cumbersomeswitch statementthat you can use to test for many values of a singl...
It is not a highly structured language (akin to BASIC), where GO TO statements are extensively used for flow control. Unlike BASIC, only lines used in branching statements get numbered. FORTRAN supports explicit declaration of variables, but also uses implicit variable types. It assumes that an...
Control Statements Control statements generally direct the flow of programs based on any desired condition. Control mechanisms such asif, else, switch, and loops like for, while, and do-whileare available in Java. These features will enable the implementer to perform the execution of blocks dependi...
Control Flow Java provides various control flow statements such as if-else, switch, for, while, and do-while loops to control the flow of execution. Here’s an example of using an if-else statement in Java: intscore=85;if(score>=90){System.out.println("Excellent!");}elseif(score>=80...
The if-then and if-then-else Statements Theif-thenStatement Theif-thenstatement is the most basic of all the control flow statements. It tells your program to execute a certain section of codeonly ifa particular test evaluates totrue. For example, theBicycleclass could allow the brakes to de...
“break” keyword when such behavior is not desired can lead to disastrous results. If you have forgotten to put a “break” in “case 0” in the code example below, the program will write “Zero” followed by “One”, since the control flow inside here will go through the entire “...
Flow Control Statements 1. [Mandatory] In a switch block, each case should be finished by break/return. If not, a note should be included to describe at which case it will stop. Within every switch block, a default statement must be present, even if it is empty. 2. [Mandatory] Braces...