Collection Framework (collection store student objects and traverse)

Create Student class First

Package cn.itcast_04;

public class Student {

private String name;

private int age;

Public Student () {

Super ();

}

Public Student (String name, int.) {

Super ();

THIS.name = name;

This.age = age;

}

Public String GetName () {

return name;

}

public void SetName (String name) {

THIS.name = name;

}

public int getage () {

return age;

}

public void Setage (int.) {

This.age = age;

}

}

To create the collection class again

Package cn.itcast_04;

Import java.util.ArrayList;

Import java.util.Collection;

Import Java.util.Iterator;

/*

* Requirements: Store custom objects and traverse student (Name,age)

*

Analysis

* A: Create student class

* B: Create a Collection Object

* C: Create student Objects

* D: Add student objects to the collection object

* E: Traversing the collection

*/

public class CollectionTest2 {

public static void Main (string[] args) {

To create a collection object

Collection C = new ArrayList ();

Create Student objects

Student S1 = new Student ("Marten Cicada", 25);

Student s2 = new Student ("Little Joe", 16);

Student s3 = new Student ("huangyueying", 20);

Student S4 = new Student ();

S4.setname ("Big Joe");

S4.setage (26);

Add a Student object to the collection object

C.add (S1);

C.add (S2);

C.add (S3);

C.add (S4);

C.add (New Student ("Sun Shangxiang",)); Anonymous Objects

Iterating through the collection

Iterator it = C.iterator ();

while (It.hasnext ()) {

Student s = (Student) it.next ();

System.out.println (S.getname () + "---" + s.getage ());

}

}

}

Or a comparative basis, I hope to help you!

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Collection Framework (collection store student objects and traverse)