listdemo.java

来自「java 教程相应的代码 全是自己写的内附注释 很容易看明白的」· Java 代码 · 共 22 行

package demo.chapter.collection;

import java.util.ArrayList;
import java.util.List;

public class ListDemo {

	@SuppressWarnings("unchecked")
	public static void main(String[] args) {
		List list = new ArrayList();
		list.add("one");
		list.add("second");
		list.add("3rd");
		list.add(new Integer(4));
		list.add(new Float(5.0F));
		list.add("second"); // duplicate, is added
		list.add(new Integer(4)); // duplicate, is added
		System.out.println(list);
	}

}