2022年石化盈科筆試題

1、1. 1.程序執(zhí)行成果是什么 程序執(zhí)行成果是什么.public public class class Encapsulation {class class ClassValue{public public int int i=15;}public public static static void void main(String[] args) {// TODO TODO Auto-generated method stubEnca

2、psulation t=new new Encapsulation();t.first();}public public void void first(){ClassValue cv=new new ClassValue();second(cv);System.out.println(“cv.i:“+cv.i);}public public void void second(ClassValue v){public public

3、class class Inherit {/*** @param @param args*/public public static static void void main(String[] args) {A a = new new B();if if (a instanceof instanceof A) {System.out.println(“A “);}if if (a instanceof instanceof B) {S