java 获取内部类_关于Java获取内部类
打比方一个类里边有多个内部类，怎样获取该类里边指定的某一个内部类
public class FactoryTest {
@Test
public void test2(){
FactoryTest factoryTest = new FactoryTest();
Class extends FactoryTest> clazz = factoryTest.getClass();
Class>[] classes = clazz.getDeclaredClasses();
System.out.println(Arrays.toString(classes)); //只能获取一个数组
结果：[class com.design.factory.FactoryTest$Triangle, classcom.design.factory.FactoryTest$Square, class com.design.factory.FactoryTest$Circle, interface com.design.factory.FactoryTest$Shape]
}
interface Shape{
public abstract void draw();
}
class Circle implements Shape{
public void draw() {
System.out.println("draw Circle");
}
}
class Square implements Shape{
public void draw(){
System.out.println("draw Square");
}
}
class Triangle implements Shape{
public void draw(){
System.out.println("draw Triangle");
}
}
}
打比方一个类里边有多个内部类，怎样获取该类里边指定的某一个内部类 public class FactoryTest { @Test public void test2(){ FactoryTest factoryTest = new FactoryTest(); Class extends FactoryTest> clazz = factoryTest.getClass(); Class>[] classes = clazz.getDeclaredClasses(); System.out.println(Arrays.toString(classes)); //只能获取一个数组 结果：[class com.design.factory.FactoryTest$Triangle, classcom.design.factory.FactoryTest$Square, class com.design.factory.FactoryTest$Circle, interface com.design.factory.FactoryTest$Shape] } interface Shape{ public abstract void draw(); } class Circle implements Shape{ public void draw() { System.out.println("draw Circle"); } } class Square implements Shape{ public void draw(){ System.out.println("draw Square"); } } class Triangle implements Shape{ public void draw(){ System.out.println("draw Triangle"); } } }