Java 实例 - 数组输出
以下实例演示了如何通过循环输出数组:
Welcome.java 文件
public class Welcome {
public static void main(String[] args){
String[] runoobs = new String[3];
runoobs[0] = "菜鸟教程";
runoobs[1] = "菜鸟工具";
runoobs[2] = "菜鸟笔记";
for (int i = 0; i < runoobs.length; i++){
System.out.println(runoobs[i]);
}
}
}
以上代码运行输出结果为:
菜鸟教程 菜鸟工具 菜鸟笔记
Java 实例
FrancisQiu
qiu***650663@gmail.com
此处的输出采用的 for 语句,在数组中也可以通过 for-each 语句对数组的每一个元素输出,比如:
import java.lang.*; public class Main{ public static void main(String args[]) { String[] runoobs = new String[3]; runoobs[0] = "菜鸟教程"; runoobs[1] = "菜鸟工具"; runoobs[2] = "菜鸟笔记"; for (String obj:runoobs){ System.out.println(obj+"\n"); } } }也可以通过数组列表进行迭代遍历打印元素,例如:
import java.util.*; import java.lang.*; public class Main { public static void main(String args[]) { ArrayList<String> runoobs = new ArrayList<String>(); runoobs.add("www."); runoobs.add("runoob"); runoobs.add(".com"); for (Iterator<String> iterator = runoobs.iterator(); iterator.hasNext(); System.out.println(iterator.next())) { } } }FrancisQiu
qiu***650663@gmail.com