java Java如何使用循环在数组中添加int
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Java how to add int in an array using loop
提问by user1645034
i cant seem to figure out the logic, here's my code
我似乎无法弄清楚逻辑，这是我的代码
class stringrays {
public static void main (String[] args) {
int[] numrays = {23, 6, 47, 35, 2, 14};
int i;
int z;
int y;
for (i=1; i < numrays.length; i++) {
z = numrays[0] + numrays[i];
System.out.println(z);
}
}
the above results shows 29 70 58 25 37
以上结果显示 29 70 58 25 37
which means that array 0 adds array 1, then array 0 adds array array 2 and so on.
这意味着数组 0 添加数组 1，然后数组 0 添加数组数组 2，依此类推。
what i want, is to add the first array 0 onto the next array and so on.. using a loop condition.
我想要的是将第一个数组 0 添加到下一个数组上，依此类推..使用循环条件。
then get the average of the sum.
然后得到总和的平均值。
采纳答案by Amit Deshpande
Remove numrays[0]and replace it with z
删除numrays[0]并替换为z
int z =0;
for (i = 0; i < numrays.length; i++) {
z = z + numrays[i];
System.out.println("Sum:"+z);
}
System.out.println("Average:"+z/numrays.length);
回答by mssb
Try this,
试试这个，
int[] numrays = {23, 6, 47, 35, 2, 14};
int z = 0;
for (int i=0; i < numrays.length; i++) {
z = z + numrays[i];
System.out.println(z);
}
System.out.println("Average : "+(z/numrays.length) );
}
回答by CloudyMarble
If you mean 23, 6 then 6 + 47 and so on you need to do:
如果您的意思是 23、6 然后是 6 + 47 等等，您需要执行以下操作：
for (i=0; i < numrays.length - 1; i++)
{
z = numrays[i] + numrays[i + 1];
System.out.println(z);
}
回答by bigGuy
Check your logic. Now you are printing sum of first and n-th number in array; old z value is lost. For sum in loop, use like z = z + something
检查你的逻辑。现在您正在打印数组中第一个和第 n 个数字的总和；旧的 z 值丢失。对于循环中的总和，使用 likez = z + something
回答by Michele Mariotti
it is unclear what you need...
不清楚你需要什么......
to add a value to the next position:
为下一个位置添加一个值：
int[] numrays = {23, 6, 47, 35, 2, 14};
for(int i = 0; i < numrays.length - 1; i++) {
numrays[i] += numrays[i + 1];
}
System.out.println(Arrays.toString(numrays));
to get the mean value:
得到平均值：
int[] numrays = {23, 6, 47, 35, 2, 14};
double sum = 0;
for(int i = 0; i < numrays.length; i++) {
sum += numrays[i];
}
double mean = sum / numrays.length;
System.out.println(mean);
回答by The Cat
You could use a "for each" loop, to sum the contents of the array and then find the average.
您可以使用“for each”循环，对数组的内容求和，然后求平均值。
int sum = 0;
for(int each : numrays)
{
sum = sum + each;
}
float average = each / numrays.length;
