题目内容

给出下列【代码】注释标注的代码的输出结果。class A {int f(int x,int y) {return x+y;}}class B extends A {int f(int x,int y) {int m = super.f(x,y)+10;return m;}}public class E {public static void main(String args[]) {A a = new B();System.out.println(a.f(2,10));//【代码】}}

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给出下列【代码】注释标注的代码的输出结果。class Animal{int m = 9;public int get(int n){return n+m;}public int see(int n){return n+m;}}class Dog extends Animal {int m = 18;public int get(int n){return n+m;}}public class E {public static void main(String args[]){Animal animal = null;Dog dog = new Dog();animal = dog;animal.m = 19;dog.m = 88;int result1 =animal.see(10);int result2 =animal.get(10);System.out.printf("%d:%d",result1,result2); //【代码】}}

给出下列【代码】注释标注的代码的输出结果。class Animal {int m = 100;public int seeM(){return m;}public int getM(){return m;}}class Dog extends Animal{int m = 6;public int seeM(){return m;}}public class E {public static void main(String args[]){Animal animal = null;Dog dog = new Dog();animal = dog;System.out.printf("%d:%d:%d",dog.seeM(),animal.seeM(),animal.getM()); //【代码】}}

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