for (ChengYu chengYu : commonChengYuList) if(chengYu.getChengYu().startsWith((currentIdiom.substring(currentIdiom.length() - 1)))) break;
时间: 2024-04-27 20:24:49 浏览: 8
这是一段Java代码,循环遍历一个成语列表,找到以当前成语的最后一个字结尾的成语,然后跳出循环。具体来说,这个代码段中的变量`commonChengYuList`是一个成语列表,`ChengYu`是成语类,`chengYu.getChengYu()`返回成语字符串,`currentIdiom`是当前成语字符串。`startsWith`方法是用来判断字符串是否以某个前缀开头的,`substring`方法是用来截取字符串的一部分的。因此,这段代码的作用是在一个成语列表中查找以当前成语的最后一个字结尾的成语,找到后跳出循环。
相关问题
while(success) { for (ChengYu chengYu : commonChengYuList) if(chengYu.getChengYu().startsWith((currentIdiom.substring(currentIdiom.length() - 1)))) break; System.out.println("请回答以下成语的下一个成语:" + currentIdiom + "(难度:" + cy.getDifficultyLevel().getName() + ")"); String answer = scanner.next(); if (!cy.isCorrectAnswer(answer,fullChengYuList)){ System.out.println("回答错误!"); success = false; getHint(currentIdiom); if (hintCount > maxHintCount) { getHint(currentIdiom); break; } } else { score++; } if (success) { System.out.println("恭喜您回答正确,得分:" + score); for (ChengYu nextChengYu : fullChengYuList) if(nextChengYu.getChengYu().startsWith((answer.substring(answer.length() - 1)))) currentIdiom=nextChengYu.getChengYu(); } } }
这段代码看起来像是一个成语接龙游戏的核心代码。其中包含了一个 while 循环,当 success 为 true 时,程序会不断循环进行下去。在循环中,首先会根据当前成语的最后一个字,从一个常见成语列表中找到下一个成语。然后程序会输出提示信息,让用户回答下一个成语。如果用户回答错误,success 会被设置为 false,游戏结束。如果回答正确,程序会更新分数,并根据回答的成语的最后一个字去查找下一个成语,并继续进行下一轮游戏。另外,如果用户多次回答错误,程序会提供提示,但最多只会提示几次(由 maxHintCount 控制)。
public void startGame() { Scanner scanner = new Scanner(System.in); while (true) { System.out.println("请选择游戏模式(1-娱乐模式,2-困难模式,0-退出):"); int mode = scanner.nextInt(); if (mode == 0) { break; } List<ChengYu> chengYuList; if (mode == 1) { chengYuList = commonChengYuList; } else { chengYuList = fullChengYuList; } Collections.shuffle(chengYuList); // 打乱顺序 int score = 0; boolean success = true; for (ChengYu cy : chengYuList) { String currentIdiom = cy.getChengYu(); for (ChengYu chengYu : commonChengYuList) if(chengYu.getChengYu().startsWith((currentIdiom.substring(currentIdiom.length() - 1)))) break; System.out.println("请回答以下成语的下一个成语:" + currentIdiom + "(难度:" + cy.getDifficultyLevel().getName() + ")"); String answer = scanner.next(); if (!cy.isCorrectAnswer(answer,commonChengYuList)) { System.out.println("回答错误!"); success = false; getHint(currentIdiom); continue; } else { score++; } if (success) { System.out.println("恭喜您回答正确,得分:" + score); for (ChengYu nextChengYu : fullChengYuList) if(nextChengYu.getChengYu().startsWith((answer.substring(answer.length() - 1)))) currentIdiom=nextChengYu.getChengYu(); } } } scanner.close(); }修改代码,要求回答正确后,系统以我的成语接龙出下一题
public void startGame() {
Scanner scanner = new Scanner(System.in);
while (true) {
System.out.println("请选择游戏模式(1-娱乐模式,2-困难模式,0-退出):");
int mode = scanner.nextInt();
if (mode == 0) {
break;
}
List<ChengYu> chengYuList;
if (mode == 1) {
chengYuList = commonChengYuList;
} else {
chengYuList = fullChengYuList;
}
Collections.shuffle(chengYuList); // 打乱顺序
int score = 0;
boolean success = true;
ChengYu currentChengYu = null;
for (ChengYu cy : chengYuList) {
String currentIdiom = cy.getChengYu();
for (ChengYu chengYu : commonChengYuList) {
if(chengYu.getChengYu().startsWith((currentIdiom.substring(currentIdiom.length() - 1)))) {
currentChengYu = chengYu;
break;
}
}
System.out.println("请回答以下成语的下一个成语:" + currentIdiom + "(难度:" + cy.getDifficultyLevel().getName() + ")");
String answer = scanner.next();
if (!cy.isCorrectAnswer(answer,commonChengYuList)) {
System.out.println("回答错误!");
success = false;
getHint(currentIdiom);
continue;
} else {
score++;
if (success) {
for (ChengYu nextChengYu : commonChengYuList) {
if(nextChengYu.getChengYu().startsWith((answer.substring(answer.length() - 1)))) {
currentChengYu = nextChengYu;
break;
}
}
}
}
}
System.out.println("恭喜您回答正确,得分:" + score);
}
scanner.close();
}
修改后的代码中,增加了一个变量currentChengYu,用来记录当前成语,每次回答正确后,都根据当前成语找到下一个成语,并将其赋值给currentChengYu。然后在下一次循环中,输出当前成语,并让用户回答。