In both While and Do-While loops, it is important to note that the condition being tested must eventually return ‘False’ for the loop to close. Otherwise, you’ll end up with an infinite loop, and probably cause a system crash. The Do-While Loop in Java The syntax of the Do-While ...
Java Control Flow,Java Keywords,Java Loops TheJavado-whileloopexecutes a block of statements indoblock, and evaluates abooleancondition inwhileblock to check whether to repeat the execution of block statements again or not, repeatedly. The important point to note is that the statements in thedobl...
Java do while 循环 与while 循环相似,do/while 循环在每次迭代结束时测试条件,而不是在开始时测试条件。有了这个循环,循环中的代码至少运行一次,因为没有进入的入口,只有退出的出口: package com.opensource.example; public class Example { public static void main(String[] args) { int count = 9; do {...
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 ...
And while and do...while loops are generally used when the number of iterations is unknown. For example, while (condition) { // body of loop } Also Read: Nested Loop in Java Before we wrap up, let’s put your knowledge of Java while and do...while Loop to the test! Can you sol...
Loops循环for 和while. For语句for循环有三个部分,用分号隔开:for (int i = 0; i < 3; i++) {}第一部分在我们进入这段话(循环体)时执行 .true, 我们就执行括号里(循环体)的内容, 如果返回 false, 我们就退出循环. 他第一次运行在第一部分运行结束后, 然后等括号内代码运行后以及第三部运行后,再次...
} while (be); 注意:do-while语句须要一个分号。 2. for语句 最经常使用的循环语句是for语句。 它将与循环相关的3个表达式——初始化表达式、循环測试表达式和计数表达式集中在for后面一个()中。这样的3表达式的for循环(Three-expression for loops)自C语言起,差点儿在全部语言中被採用。
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;...
Loops循环for 和while. For语句for循环有三个部分,用分号隔开:for (int i = 0; i < 3; i++) {}第一部分在我们进入这段话(循环体)时执行 .true, 我们就执行括号里(循环体)的内容, 如果返回 false, 我们就退出循环. 他第一次运行在第一部分运行结束后, 然后等括号内代码运行后以及第三部运行后,再次...
do {} while (i < max)is similar like before, only difference is that the loop body will be execute at least once. while(true) { if (i < max) {break;}}Whenever seebreak; will jump out from thewhileloop. max = 5; i = 0; ...