1、学习泛型类、泛型方法、泛型参数
2、泛型的上限、下限
package IMF;
public class JavaGenerics {
public static void main(String[] args) { //Empty empty =null; //empty = new Empty("spark"); //System.out.println("Content: "+ empty.getItem()); //Empty empty =null; //empty = new Empty("Spark",6); //empty = new Empty ("Spark",99.9999); //System.out.println(empty.getKey() + "->" + empty.getValue()); //log(empty); /* News news=null; news=new ITNews("Life is short,you need spak!"); System.out.println(news.getContent()); */ Integer[] data ={1,2,3,4,5,6,7,8,9}; arrayGenerics(data); }
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