Hard Game: Đọc dữ liệu từ ArrayList bằng Iterator trong Java Iterator ArrayList Java

Saturday, January 28, 2017

Đọc dữ liệu từ ArrayList bằng Iterator trong Java Iterator ArrayList Java

Iterator ArrayList

Java 2016


package Demo22;



import java.util.*;





public class IteratorFailFastTest {

 

 public void runIteratorAsList() {

 

 List<String> listNames = Arrays.asList("Tom", "Joe", "Bill", "Dave", "John");

 Iterator<String> iterator = listNames.iterator();

 while (iterator.hasNext()) {

     String nextName = iterator.next();

     System.out.println(nextName);

 }

 }



 public void runIteratorList() {

 

 List<String> listNames = new ArrayList();

 listNames.add("Tom");

 listNames.add("Joe");

 listNames.add("Bill");

 listNames.add("Dave");

 listNames.add("John");

 

 Iterator<String> iterator = listNames.iterator();

 while (iterator.hasNext()) {

     String nextName = iterator.next();

     System.out.println(nextName);

 }

 }

 

 public static void main(String[] args) {

 IteratorFailFastTest tester = new IteratorFailFastTest();

 tester.runIteratorAsList();

 tester.runIteratorList();

 }

}

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