总结： while{} 循环适用于在条件满足时才需要执行的场景。 do{}while 循环适用于无论如何都需要先执行一次循环体的场景，然后根据条件判断是否继续循环。
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) ...
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...
// update (crucial for loop termination, often inside the loop body) } publicclassWhileLoopDemo{ publicstaticvoidmain(String[] args){ intcount =1;// 1. 初始化 while(count <=5) {// 2. 终止条件 System.out.print...
// 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); ...
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...
2. Java Do-while Example The following program demonstrates the basic usage of ado-whileloop. The program prints the numbers from 1 to 5. inti=1;do{System.out.println(i);i++;}while(i<=5); The program outputs: 12345 3. Difference betweenwhileLoop anddo-whileLoop ...
Java 中的“While-loop” | C# 中的“For 循环” | Python 中的“For-loop” | | --- | --- | --- | | //让我们初始化一个变量 int I = 3;而(i > 0) {System.out.println("三个 hello ");-我;} | //这是一个迷人的循环for(int I = 0;我<3;i++){控制台。WriteLine(“你好!
C:\Program Files (x86)\Common Files\Oracle\Java\javapath所以没有手动配置环境变量时,java 命令可以用,但 javac 不行。 每次改动,都需要重新打开 DOS 窗口,配置才能生效。输入 javac Hello.java,如果你的语法正确,就会在当前路径下生成 class(字节码)文件,再输入 java Hello ,此时别带后缀。有...
While this tool fo- 43 cuses on the scope to be modified within a loop, our tool also supports the program fragments outside of the loop. Schäfer et al. [13] proposed dependency preservation for syn- chronization using the synchronization dependence edges to guar- antee the correctness ...