数组反射机制的应用小例------getComponentType

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package Ref;import java.awt.Button;public class SampleComponentReflection {public static void main(String[] args) {int[] ints = new int[2];Button[] buttons = new Button[6];String[][] twoDim = new String[4][5];String[] two = new String[4];printComponentType(ints);printComponentType(buttons);printComponentType(twoDim);printComponentType(two);}static void printComponentType(Object array) {Class arrayClass = array.getClass();String arrayName = arrayClass.getName();Class componentClass = arrayClass.getComponentType();String componentName = componentClass.getName();System.out.println("ArrayClass:" + arrayClass + " ,----ArrayName: "+ arrayName + ",------- Component: " + componentClass);}}

输出结果：

ArrayClass:class [I ,----ArrayName: [I,------- Component: intArrayClass:class [Ljava.awt.Button; ,----ArrayName: [Ljava.awt.Button;,------- Component: class java.awt.ButtonArrayClass:class [[Ljava.lang.String; ,----ArrayName: [[Ljava.lang.String;,------- Component: class [Ljava.lang.String;ArrayClass:class [Ljava.lang.String; ,----ArrayName: [Ljava.lang.String;,------- Component: class java.lang.String