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对于我的任务之一,我需要修改原始代码以使用将传递给另一个函数的字符串,以便将此循环转换为while循环,但我似乎无法正确理解。我哪里错了?如何将java for循环更改为while循环
public void smallestError(double[] errorCalculation, double[] mean, double[][] ratios, int length) {
double small = errorCalculation[0];
computedRatios = new double[length];
int holder = 0;
//int x = 0;
for (int i =0; i<7; i++)
{
if(errorCalculation[i] < small)
{
small = errorCalculation[i];
holder = i;
}
}
computedError = small;
computedRatios = new double[length];
for (int x = 0; x < length; x++) {
computedRatios[x] = ratios[holder][x];
}
//String str1 = String.valueOf(holder);
// bigODeter = str1;
bigODeter = holder;
}
我尝试:
public void smallestError(double[] errorCalculation, double[] mean, double[][] ratios, int length) {
double small = errorCalculation[0];
computedRatios = new double[length];
int holder = 0;
int x = 0;
/*for (int x = 0; x < 7; x++) {
if (errorCalculation[x] < small) {
small = errorCalculation[x];
holder = x;
}
}*/
while (x == 0) {
if (errorCalculation[x] < small) {
small = errorCalculation[x];
}
holder = x;
}
while (x == 1) {
if (errorCalculation[x] < small) {
small = errorCalculation[x];
holder = x;
}
}
while (x == 2) {
if (errorCalculation[x] < small) {
small = errorCalculation[x];
holder = x;
}
}
while (x == 3) {
if (errorCalculation[x] < small) {
small = errorCalculation[x];
holder = x;
}
}
while (x == 4) {
if (errorCalculation[x] < small) {
small = errorCalculation[x];
holder = x;
}
}
while (x == 5) {
if (errorCalculation[x] < small) {
small = errorCalculation[x];
holder = x;
}
}
while (x == 6) {
if (errorCalculation[x] < small) {
small = errorCalculation[x];
holder = x;
}
computedError = small;
computedRatios = new double[length];
for (x = 0; x < length; x++) {
computedRatios[x] = ratios[holder][x];
}
String str1 = String.valueOf(holder);
bigODeter = str1;
}
}
此外,我不得不持有人从一个int转换为字符串,因为我们必须把它转换。
不是我的downvote,但是你为什么需要从'for'到'while'循环转换摆在首位? –
'for(int i = 0; i <7; i ++)'也许和'while(i ++ <7)'相同' –
也在你的代码中'x'永远不会增加 –