Java方法定义中参数类型使用Object的示例分享

当方法的参数类型为Object
   实际接收的参数可以为其子类

package com.java265.other;
public class Test16 {
	/**
	 * java265.com 示例程序
	 * @throws Exception
	 */
	public static void main(String[] args) throws Exception {
		TSub t2 = new TSub();
		TParent t3 = new TParent();
		classCheck(t2);
		classCheck(t3);
	}

	private static void classCheck(Object j) {
		if (j instanceof TParent) {
			System.out.println("TParent");
		}

		if (j instanceof TSub) {
			System.out.println("TSub");
		}
	}
}

class TParent {}
class TSub {}