public class test1 { public void test(String str){ System.out.print(str); } public static void main(String[] args) { test1 t = new test1(); t = null; t.test("abc"); } }
会
能通过编译,不能运行的会报错的哦!
Exception in thread "main" java.lang.NullPointerException
at com.test.test1.main(test1.java:10)