}while(表达式) ; do-while循环结构会先执行循环体,然后再判断表达式的值,若条件为真,执行循环体,当条件为假时结束循环。do-while循环的循环体至少执行一次。 while与do-while的区别: publicclassTest {publicstaticvoidmain(String[] args) {//while循环:先判断再执行inta = 0;while(a < 0) { System.out....
The syntax of While in JAVA is: initialize-value; while(Boolean-Expression){ statement-or-code; //This will be executed continually until Boolean expression evaluate to true increment-decrement-value; } initialize-value –First initialize the value first before starting while loop.Boolean-Expression ...
do/while 循环是 while 循环的变体。该循环会执行一次代码块,在检查条件是否为真之前,然后如果条件为真的话,就会重复这个循环。JavaScript 支持不同类型的循环:for - 循环可以将代码块执行指定的次数。 for/in - 循环遍历对象的属性 while - 当指定的条件为 true 时循环指定的代码块 do/while - 同样当指定的...
【java基础篇】流程控制(if、Switch、While、DoWhile、For) if选择结构 if单选择结构 if双选择结构 if多选择结构 嵌套if结构 Switch选择结构 While循环结构 语法:while(执行条件){执行语句} DoWhile循环结构 语法: For循环结构 语法:...switch、break、continue 1、switch 注意: break:作用就是跳出来;如果满足...
sout("生成的验证码是:"+code); do-while循环(先执行再循环,循环至至少会执行一次(先做,对其结果进行判断,是否继续进行)) do{ //循环执行条件 }while(条件); 例子:参加考试,判断是否要进行补考(考过了一次根据成绩判断是否进行补考) Random ran=newRandom();intscore;do{ ...
Infinite Do While Loop Java 1 2 3 4 5 do { // Your code here will run endlessly } while (true); In this snippet, the condition in the while part of the loop is set to true, which is always true by definition. Therefore, the loop will never exit naturally, and the code block...
Below is the code for the same.//Java Program to see the implementation of an infinite do-while loop program public class Main { public static void main(String []args) { int i=1; System.out.println("Example of Infinite do while loop: "); //Infinite Loop Example do { System.out....
Java控制语句(if,switch,for,while,do-while) 控制语句 条件语句 •条件语句 - 根据不同条件,执行不同语句。 –if –if … else –if … else if –if … else if … else if … else –switch 循环语句 •循环语句 – 重复执行某...
Hello again... next code I stuck and can’t find out what’s wrong is import java.util.Scanner; public class Main { public static void main(String[] args) {
Run Code Output Enter a number: 2 Enter a number: 4 Enter a number: -3 The sum is 6 In the above program, the do...while loop prompts the user to enter a number. As long as we enter positive numbers, the loop adds them up and prompts us to enter more numbers. If we enter...