class Parent { int i = 60; } class Child extends Parent { int i = 70; } class Main { public static void main(String[] args) { Child c = new Child(); Parent p = new Parent(); System.out.println((Parent c).i); } }
解决方法
System.out.println(((Parent) c).i);
用于将EXPRESSION或VARIABLE转换为TYPE的简化模板是:
((TYPE)(EXPRESSION|VARIABLE))