public void convertStrings() {
for (int counter = 0; counter < compare.length; counter++) {
compare[counter] = compare[counter].replace('*','_');
compare[counter] = compare[counter].replaceAll("_",".*");
compare[counter] = compare[counter].replace('?', '.');
}
// System.out.printf("%s", Arrays.toString(compare));
}
public void compareStrings() {
for (int counter = 0; counter < data.length; counter++) {
for (int counter1 = 0; counter1 < compare.length; counter1++) {
if (data[counter].matches(compare[counter1]) == true) {
System.out.printf("%s ", data[counter]);
}
}
System.out.println();
}
}
}
我要做的是将输入中的任何*替换为。*,这样当我将字符串与之前的任何内容进行比较时,它将忽略以前的字符。另外,我正在转换一个“?”到占位符值“。”。但是,当我运行已编译的代码时,我收到此错误,因为该字符串将特殊字符转换为常规字母。如何让编译器注册这些特殊字符来执行该功能?
答案 0 :(得分:1)
只需将行更改为:
compare[counter] = compare[counter].replaceAll("\\*",".*").replaceAll("\\?", ".");
答案 1 :(得分:0)
我假设从行中抛出错误
if (data[counter].matches(compare[counter1]) == true)
如果是这样,最可能的解释是compare[counter1]
实际上是null
,也就是说它不包含值。