我在弄清楚为什么我的setMethod不起作用时遇到了问题。当我使用它时,我的主要方法没有显示任何正确的答案。我最初使用用户输入到我的StringProcessor str = new StringProcessor(输入),它完美地工作。我只是不确定为什么我不能让它工作,如果我没有在我的新对象输入并使用设置字符串来创建我的字符串。任何帮助都会很棒。感谢。
import java.util.*;
public class StringProcessor {
private String noSpaces, string;
private String input, noVowels;
private String noDigitWords;
private int numOfWords = 0, uppercaseLetters = 0,
numOfDigits = 0, digitWords = 0;
private String [] wordDigits = {"zero","one", "two", "three","four",
"five", "six", "seven", "eight", "nine"};
private String [] digits = {"0", "1", "2", "3", "4",
"5", "6", "7", "8", "9"};
public StringProcessor()
{
string = ("");
}
public StringProcessor(String s)
{
StringTokenizer one = new StringTokenizer(s);
StringTokenizer str = new StringTokenizer(s);
numOfWords = str.countTokens();
for (int i = 0; i < s.length(); i++)
{
if (Character.isUpperCase(s.charAt(i)))
uppercaseLetters++;
}
for (int i = 0; i < s.length(); i++)
{
if (Character.isDigit(s.charAt(i)))
numOfDigits++;
}
String [] strSplit = s.split(" ");
for(int i = 0; i < strSplit.length; i++)
{
for (int j = 0; j < wordDigits.length; j++)
{
if (strSplit[i].equalsIgnoreCase(wordDigits[j]))
digitWords++;
}
}
noSpaces = s.replace(" ","");
noVowels = s.replaceAll("[aeiou]", "-");
noDigitWords = s;
for(int i = 0; i < 10; i++)
{
noDigitWords = noDigitWords.replace(wordDigits[i], digits[i]);
}
}
public void setString(String s)
{
string = s;
}
public String getString()
{
return string;
}
public int wordCount()
{
return numOfWords;
}
public int uppercaseCount()
{
return uppercaseLetters;
}
public int digitCount()
{
return numOfDigits;
}
public int digitWordCount()
{
return digitWords;
}
public String getNoSpaceString()
{
return noSpaces;
}
public String getNoVowelString()
{
return noVowels;
}
public String getNoDigitWordString()
{
return noDigitWords;
}
public static void main(String [] args) {
StringProcessor str = new StringProcessor();
str.setString("my string");
System.out.println(str.getString());
System.out.println("words: " + str.wordCount());
System.out.println("uppercase: " + str.uppercaseCount());
System.out.println("digits: " + str.digitCount());
System.out.println("digit words " + str.digitWordCount());
System.out.println("line with no spaces: " + str.getNoSpaceString());
System.out.println("line with vowels replaced: " + str.getNoVowelString());
System.out.println("line with digit words replaced: " + str.getNoDigitWordString());
}
}
答案 0 :(得分:1)
问题在于,当您使用字符串参数构造StringProcessor
时,所有计算都已完成:
StringProcessor str = new StringProcessor("some string");
但是你没有使用那个构造函数;你只使用不带参数的构造函数。因此,执行所有计算的代码永远不会被执行。
将计算移动到私有方法。然后让单参数构造函数和setString
调用该方法。 (并确保setString
或您的私有方法将所有计数重新初始化为0,这样,如果多次设置setString
,则值将是正确的而不是累积的。)