這裏寫自定義目錄標題
1. 看看下面的小工具
一個用函數直接寫的小工具,一個又用類封裝了一下。 有什麼感覺?
public class MessageUtil {
private void printGuessStatistics(char candidate, int count) {
String number;
String verb;
String pluralModifier;
if (count == 0) {
number = "no";
verb = "are";
pluralModifier = "s";
} else if (count == 1) {
number = "1";
verb = "is";
pluralModifier = "";
} else {
number = Integer.toString(count);
verb = "are";
pluralModifier = "s";
}
String guessMessage = String.format("There %s %s %s%s", verb, number, candidate, pluralModifier);
System.out.println(guessMessage);
}
static class GuesStatisticsMesage {
private String number;
private String verb;
private String pluralModifier;
public String make(char candidate, int count) {
createPluralDependentMessageParts(count);
return String.format("There %s %s %s%s", verb, number, candidate, pluralModifier);
}
private void createPluralDependentMessageParts(int count) {
if (count == 0) {
thereAreNoLetters();
} else if (count == 1) {
thereIsOneLetter();
} else {
thereAreManyLetters(count);
}
}
private void thereAreManyLetters(int count) {
number = Integer.toString(count);
verb = "are";
pluralModifier = "s";
}
private void thereIsOneLetter() {
number = "1";
verb = "is";
pluralModifier = "";
}
private void thereAreNoLetters() {
number = "no";
verb = "are";
pluralModifier = "s";
}
}
}