多个条件语句:多个条件语句是指在程序中需要根据不同情况执行不同的代码块。在Java中,可以使用if-else语句或者switch语句来实现多个条件语句的判断。 if-else语句:通过判断条件的真假来选择执行相应的代码块。示例代码: 代码语言:txt 复制int x = 10; if (x > 0) { System.out.println("x是正数...
for(int i = 0;i<4;i++){ System.out.println("hello java"); } } } 1. 2. 3. 4. 5. 6. 7. root@debian:/home/jeff/java_coding/day004# java myfor hello java hello java hello java hello java 1. 2. 3. 4. 5. for循环执行过程 class myfor1{ public static void main(String[...
Foreach循环(Foreach loop)是计算机编程语言中的一种控制流程语句,通常用来循环遍历数组或集合中的元素。foreach语法格式如下: for( 元素类型T 元素变量t : 遍历对象obj){ 引用了t 的java 语句; } 1. 2. 3. 以下实例演示了普通for循环和foreach循环使用: private static void test() { List<String> names...
Thefor-loopstatement in Java provides a compact way to iterate over the arrays or collection types using a counter variable that is incremented or decremented after each iteration. Programmers often refer to it as thetraditional “for loop”because of the way it repeatedly loops until a particular...
For-eachLoop Purpose The basicforloop was extended in Java 5 to make iteration over arrays and other collections more convenient. This newerforstatement is called theenhanced fororfor-each(because it is called this in other programming languages). I've also heard it called thefor-inloop. ...
An infinite loop example: You now have the tools at your disposal to make cool little text based programs with Java. Congratulations! If you have any questions or need additional help, again you may use the form below to get in touch with me, and I'll be glad to help. ...
Java 的三种循环:foreach,Iterator 和 classic for loop 不得不说,java语言在提供了这三种循环方式带来灵活性的同时,同时也将一些“混乱”引入了进来。 这里的“混乱”并不是真正意义上的混乱,而是由于没有统一的风格而带来使用习惯的问题——想象一下,如果同一个项目中这三种都有人用,阅读起来真是五味杂陈啊...
To demonstrate a practical example of the for loop, let's create a program that counts to 100 by tens:ExampleGet your own Java Server for (int i = 0; i <= 100; i += 10) { System.out.println(i); } Try it Yourself » In this example, we create a program that only print ...
java public class okxhb.cn{ public static void main(String[] args) { for (int i = 0; i < 5; i++) { System.out.println("Count is: " + i); } } } 2. while 循环 while 循环用于在条件为真时重复执行代码块。 java public class WhileLoopExample { ...
在Java5 中引入了一种主要用于数组的增强型 for 循环。 while 循环 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("val...