J a v a Java Java 中泛型的使用
1.定义一个含有泛型的类
package 泛型;
public class genericClass<E>{
private E name;
public E getName() {
return name;
}
public void setName(E name) {
this.name = name;
}
}
2.主类
package 泛型;
public class MaInClass {
public static void main(String[] args) {
genericClass<String> a1 = new genericClass<String>();
a1.setName("HeHao");
System.out.println(a1.getName());
genericClass<Integer> a2= new genericClass<Integer>();
a2.setName(1234);
System.out.println(a2.getName());
}
}