数组循环如何将自身计时三遍 [英] Array loop how to times itself three times

问题描述

我是java的新手，我正在尝试制作以下数组，使其自身倍增3倍。当前输出是相同的。如何使它成为输出：假设输入i = 1，输出将为{3,6,12}，因此它乘以之前的数字三倍。

I am new to java, and I am trying to make the below array to make it times itself three times. The output is currently the same. How do I make it so it makes the output: let's say input i=1 and output will be {3,6,12} so it times the number before that three times.

double [] conversion = new double [3];
for(int i=0;i<conversion.length;i++){
    conversion[i]=3*bytes;

推荐答案

您要在数组将输入的3倍，然后循环遍历之后的值。

You'd want to set the first value in the array to 3x your input, and then just loop through the values after that.

int inputNumber = 1;
int[] conversion = new int[3];
conversion[0] = inputNumber * 3;
for(int i = 1; i < conversion.length; i++) {
    conversion[i] = conversion[i-1] * 3;
}

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