Package cn.itcast_02;
Import java.util.ArrayList;
Import Java.util.Iterator;
Import java.util.List;
/*
* Store custom objects and traverse
*/
public class Listdemo {
public static void Main (string[] args) {
To create a collection object
List List = new ArrayList ();
Create student Objects
Student S1 = new Student ("Bones Jing", 30);
Student s2 = new Student ("Spider-Fine", 40);
Student s3 = new Student ("Kwan-Yin Sister", 22);
add a Student object to the collection object
List.add (S1);
List.add (S2);
List.add (S3);
Traverse
Iterator it = List.iterator ();
while (It.hasnext ()) {
Student s = (Student) it.next ();
System.out.println (S.getname () + "---" + s.getage ());
}
}
}
Stick to my blog about the collection, you feel the mastery is very simple!
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Collection Framework (List stores student objects and traverses)