我最近在eclipse中设置了查找错误,以查看它生成的报告。我已将所有设置设置为尽可能敏感。如果我创建了一个写入文件的小应用程序,并且不关闭流,那么它就会启动它,这很好。查找错误 - 找不到错误
然而,使用已写入,我们没有有几个错误的项目,特别是在输出中,我们得到完全没有错误(在发现漏洞方面)
我想知道是否有人可以通过他们的版本运行它,并报告我是否可能找到错误设置的错误,或者实际上是否可以找到没有错误?
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class SpellUtil {
private final static String teenSpelling[] = {"Zero", "One", "Two", "Three",
"Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten", "Eleven",
"Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen",
"Seventeen", "Eighteen", "Nineteen"};
private final static String centSpelling[] = {"Twenty", "Thirty", "Forty",
"Fifty", "Sixty", "Seventy", "Eighty", "Ninety"};
private final static String suffixSpelling[] = {
"", // Dummy! no level 0 (added for nicer indexing in code)
"", // Nothing for level 1
" Thousand, ", " Million, ", " Billion, ", " Trillion, ", " Quadrillion, ",
" Quintillion, "};
public static String spell(int number) {
int rem, placeIndicator = 1;
boolean isNegative = false;
List<String> spelling = new ArrayList<String>();
if (number < 0) {
isNegative = true;
number = Math.abs(number);
}
while (number > 0) {
rem = number % 1000;
number = number/1000;
spelling.add(suffixSpelling[placeIndicator]);
try {
spelling.add(spellBelow1000(rem));
} catch (SpellingException e) {
System.out.println(e.getMessage());
}
placeIndicator++;
}
StringBuilder sb = new StringBuilder();
if (isNegative) sb.append("Minus ");
for (int i = spelling.size() - 1; i >= 0; i--) {
sb.append(spelling.get(i));
}
return sb.toString();
}
private static String spellBelow1000(int number) throws SpellingException {
if (number < 0 || number >= 1000)
throw new SpellingException("Expecting a number between 0 and 999: " + number);
if (number < 20) {
// if number is a teen,
// find it in teen table and return its equivalent text (word).
return teenSpelling[number];
} else if (number < 100) {
// otherwise, if it is a cent,
// find the most (div) and least (rem) significant digits (MSD/LSD)
int div = (int) number/10;
int rem = (int) number % 10;
if (rem == 0) {
// if LSD is zero, return the cent key word directly (like
// fifty).
return centSpelling[div-2];
} else {
// otherwise, return the text as cent-teen (like fifty-one)
return centSpelling[div-2] + "-" + teenSpelling[rem];
}
} else {
// otherwise, it is a mil;
// find it's MSD and remaining cent.
int div = number/100;
int rem = (int) number % 100; // TODO will findbugs detect unnecessary (int)?
// Prepare the mil prefix:
String milText = teenSpelling[div] + " Hundred";
// decide whether to append the cent tail or not.
if (rem == 0) {
// if it does have a non-zero cent, that's it.
// return the mil prefix, for example three hundred:
return milText;
} else {
// otherwise, spell the cent and append it to mil prefix.
// (now, rem is a cent).
// For example, three Hundred and Sixty-Four:
return milText + " and " + spellBelow1000(rem);
}
}
}
}
它应该找到哪个特定的错误,但没有?你觉得FindBugs会发现你的程序可能有什么错误吗? –
不 - 我只是假设它至少会抛出一些警告或者什么 – Biscuit128
而你认为那个bug是哪里的? – exexzian