// if found, then process it, such as inserting rows into database System.out.println("End Processing of do while loop"); Thread.sleep(5 * 1000); } while (true); } } Note that you will have to manually quit the application to stop it, usingif the program is executed in the term...
Java中的循环有两种主要形式：while{} 和 do{}while，它们的主要区别如下：while{} 循环：工作原理：先判断条件表达式是否为真，如果条件为真，则执行循环体内的代码块；如果条件为假，则跳过循环体，继续执行循环之后的代码。特点：条件满足时才执行循环体，因此可能一次都不执行。do{}while 循环：工作...
// Java Program to display numbers from 1 to 5 import java.util.Scanner; // Program to find the sum of natural numbers from 1 to 100. class Main { public static void main(String[] args) { int i = 1, n = 5; // do...while loop from 1 to 5 do { System.out.println(i); ...
while是最基本的循环,它的结构为: while(布尔表达式){//循环内容} 只要布尔表达式为 true,循环就会一直执行下去。 实例 Test.java 文件代码: publicclassTest{publicstaticvoidmain(String[]args){intx=10;while(x<20){System.out.print("value of x :"+x);x++;System.out.print("\n");}}} 以上实例编...
Example int i = 0; while (i < 5) { System.out.println(i); i++; } Try it Yourself » Note: Do not forget to increase the variable used in the condition, otherwise the loop will never end!Exercise? How many times will the following loop execute?int i = 0;while (i < 4) ...
嵌套do...while 循环可以用于需要至少执行一次内部循环的情况。 java public class NestedDoWhileLoop { public static void main(String[] args) { int i = 0; do { int j = 0; do { System.out.print("(" + i + ", " + j + ") "); ...
inti=1;do{System.out.println(i);i++;}while(i<=5); The program outputs: 12345 3. Difference betweenwhileLoop anddo-whileLoop The main difference betweendo-whileloop andwhile-loopis thatdo-whileevaluates its expression at the bottom of the loop instead of the top. Therefore, thestatements...
HI all , is there a problem with the proposed solution for the Do..while loop in the java course ? it seems working but it wont compile on the simulator . how can i complete the course ? import java.util.Scanner; public class Program { public static void main(String[] args) { Scann...
在入口控制的循环中,测试表达式在进入循环之前求值,而在出口控制的循环中,测试表达式在退出循环之前求值。在Java中,for循环和while循环是入口控制循环,do while循环是出口控制循环。 3.更新表达式 更新表达式更改循环变量的值。update表达式在循环体执行之后在循环的末尾执行。例如,update表达式可以是increment或decrement语句...
本资料包系统性地探讨了Java编程语言中程序流程控制的核心机制,重点解析了条件判断语句(if-else、switch)和循环结构(while、do-while、for)的语法、特性及应用。通过对不同控制结构在解决实际问题(如实现猜数字游戏、打印九九乘法表、数据...