Here, you are going to learn about while and do...while loops. Java while loop Java while loop is used to run a specific code until a certain condition is met. The syntax of the while loop is: while (testExpres
The while loop loops through a block of code as long as a specified condition is true:SyntaxGet your own Java Server while (condition) { // code block to be executed } In the example below, the code in the loop will run, over and over again, as long as a variable (i) is less ...
The important point to note is that the statements in thedoblock are executed at least once, even if the condition in thewhilestatement is alwaysfalse. 1. Syntax The general syntax of a do-while loop is as follows: do{statement(s);}while(condition-expression); Let us note down a few ...
循环(loop):一种控制结构,重复执行一组指令。Java提供了3种循环:for 循环、while 循环和 do 循环。 循环控制变量(loop control variable):for 循环中的变量,每次执行 for 循环时都会修改循环变量值,通过检查该变量决定是否结束循环。 机器语言(machine language):由计算机能够直接执行的指令组成的编程语言。机器语言...
* @Description do-while循环 */ public class Loop{ public static void main (String[] args) { // 输出1-100之间所有的数字 int n=1; do{ System.out.println (n++); } while(n<=100); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. ...
WhileLoopTree ForLoopTree SwitchTree SynchronizedTree EnhancedForLoopTree LabeedStatementTree AssertTree EmptyStatementTree IfTree ExpressionStatementTree CatchTree MethodTree ArrayTypeTree UnionTypeTree ModifiersTree ParameterizedTypeTree CaseTree ExpressionTree (一个非完整的语句,比如简单的"a = 1",注意最后没...
Loops are the way to do this. A while loop has a boolean test and a body containing statements, like this: int count = 0; while (count < 100) { // test: boolean test within (..) System.out.println("count:" + count); // body: statements within {..} count = count + 1;...
How is the while-loop constructed in Java? The structure of a while-loop in Java doesn’t usually change too much. While the syntax remains the same, only the statements and the termination condition change. First the term “while” introduces the loop, then the termination condition follows...
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
The while and do-while StatementsThe while statement continually executes a block of statements while a particular condition is true. Its syntax can be expressed as: while (expression) { statement(s) } The while statement evaluates expression, which must return a boolean value. If the ...