返回与数组中连续序列相匹配的第一类索引

Question

我的对象如下所示：请注意，这不是家庭作业，而是我自己正在做的Web项目。所以帮助将不胜感激！

enum size { small, big; } 

Class Controller 
{ 
    size sizeType; 
} 

Class square extends shape 
{ 
    int num = 1; 
} 

Class circle extends shape 
{ 
    int num=2; 
    size size = size.Small; 
} 

void method() 
{ 
    Controller[] sizes = new Controller[n]; 
    // e.g. shape = {small, big, small, small, big} 

    Shape circle = new Shape(); 
    /* Find 2 'small' continuous circles 
     OR find 'size' based on the num value 
     (circle has 2 but should be able to accept 
     any integer = num declared in the shape class */ 

    // RETURN occurrence of first such index for e.g. 2 as found in 2,3  
} 

Answer 1

你的代码真正的问题：你完全破坏对象的层次结构。

首先第一件事情，这里有一些小的修正，根据我的猜测，你打算什么：

enum SizeType { SMALL, BIG; } 

class Shape { 
    SizeType size; 
} 

class Square extends Shape { 
    int num = 1; 
} 

class Circle extends Shape { 
    int num = 2; 
    SizeType size = SizeType.SMALL; 
} 

int findShapeSequence(Shape[] shapes) { 
    // TODO find the first instance of a repeated size value in the array, 
    // and return the index of the first of the shapes whose size repeats. 
} 

现在，这个被清除，它应该很容易为你找出如何实际上做你想要的方法。