/** *  */package test.thinkinjava.Generics;import java.util.ArrayList;import java.util.List;/** * @author Luo *  */public class Abc<T> {    private List<T> list = new ArrayList<T>();    private T element;    @Override    public String toString() {        return list.toString();    }    public void addList(T element) {        this.list.add(element);    }    public T getElement() {        return element;    }    public void setElement(T element) {        this.element = element;    }    public static void main(String[] args) {        Abc<String> abcString = new Abc<String>();        abcString.addList("a");        abcString.addList("b");        abcString.addList("c");        abcString.addList("d");        abcString.addList("e");        System.out.println(abcString.toString());        abcString.setElement("okda");        System.out.println(abcString.getElement() instanceof String);        Abc<Integer> abcInteger = new Abc<Integer>();        abcInteger.addList(1);        abcInteger.addList(2);        abcInteger.addList(3);        abcInteger.addList(4);        abcInteger.addList(5);        System.out.println(abcInteger.toString());        abcInteger.setElement(1234567899);        System.out.println(abcInteger.getElement() instanceof Integer);    }}