java - 斐波那契作业 - java

Question

我们必须创建一个斐波那契系统。你能告诉我我做错了什么吗？它在 while 循环下给我一个错误，但我确信这是我构造变量的方式。

public class Chapter3 {
    public static void main (String args[]){  
        int numFn;//CREATE NUMBER OF FN, SUM OF FN, AND AVERAGE   
        int average[]=new int [0];
        int sumFn []=new int [0];//ARRAY OF SUMFN        
        numFn = 1;//ASSIGN FN AS 1           
        int x = 0;//NUMBERIN SIDE FN ARRAY         
        int Fn []=new int[16];//CREATE FN ARRAY       
        Fn [0]=0;    

        while (numFn <15){
            Fn[x]= Fn[x]-Fn[x-1];//SET THE CURRENT FN NUMBER
            sumFn [x]=sumFn[x]+(sumFn[x-1]+Fn[x]);//SET CURRENT SUMFN NUMBER
            average [x]= sumFn[x]/numFn;

            System.out.println(numFn +"/t" +Fn+"/t" +sumFn+"/t" +average);
            x++;
            numFn++;
        }
    }
}

好吧，我根据你们的建议对其进行了更改，但第一个输出是 1 然后是 0，使用以下代码:

           public class Chapter3 {
        public static void main (String args[]){
          int numFn;//CREATE NUMBER OF FN, SUM OF FN, AND AVERAGE
        int average[]=new int [16];
        int sumFn []=new int [16];//ARRAY OF SUMFN
        numFn = 1;//ASSIGN FN AS 1
        int x = 1;//NUMBERIN SIDE FN ARRAY
        int Fn []=new int[16];//CREATE FN ARRAY
        Fn [0]=0;



    while (numFn <15){
        Fn[x]= Fn[x]-Fn[x-1];//SET THE CURRENT FN NUMBER
        sumFn [x]=sumFn[x]+(sumFn[x-1]+Fn[x]);//SET CURRENT SUMFN NUMBER
        average [x]= sumFn[x]/numFn;

        System.out.println(numFn +"\t" +Fn[x]+"\t" +sumFn[x]+"\t" +average[x]);
        x++;
        numFn++;
    }


}

Answer 1

几个问题:

1. new int[0] 表示一个空数组，这不是你想要的 想要。
2. 第一次循环执行时X值为0，所以Fn[X-1]为Fn[-1]，即 会导致 ArrayOutOfBoundException。

您能否更明确地说明您遇到的错误？