java中用loadClass加载类和用forName初始化类参数要用全类名（加上包路径）

package chapter1801; class Tester{ static{ System.out.println("Tester类的静态初始化块！"); } } public class ClassLoaderTest { public static void main(String[] args) throws ClassNotFoundException { ClassLoader cl=ClassLoader.getSystemClassLoader(); cl.loadClass("chapter1801.Tester"); System.out.println("loading Tester class!"); Class.forName("chapter1801.Tester"); } }