【Java开源代码栏目提醒】:网学会员为广大网友收集整理了,GenericsUse.java,希望对大家有所帮助!
package chapter9;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class GenericsUse {
public static void main(String[] args) {
List<String> listnew = new ArrayList<String>();
listnew.add("123");
// listnew.add(new Integer(5));
String element = null;
for (Iterator<String> iter = listnew.iterator(); iter.hasNext();)
element = iter.next();
System.out.println("element is " + element);
}
}