汉字书名的问题
你们从控制台获取的汉字 跟 书名的数组中的汉字比较相同 是怎么比较的，用汉字书名 总是出错
6 回答
System.out.println("请输入图书名称：");
String name = new Scanner(System.in).nextLine().toString();
String[] books = {"xiyouji" , "hongloumeng" , "zhuxian" , "guichuideng"};
boolean isFind = false;
for (String bookName : books) {
if (bookName.equals(name)) {
System.out.println("book:" + name);
isFind = true;
break;
}
}
if (!isFind) {
throw new Exception();
}
public void kindChoice (int num) throws NameNoMatchException{
switch (num) {
case 1:
System.out.println("请输入图书名称：");
String name = (String)new Scanner(System.in).nextLine().toString();
try {
nameChoice(name);
} catch (NameNoMatchException e) {
System.out.println("输入的图书名字不存在");
//回滚操作
orderChoice();
}
break;
case 2:
System.out.println("请输入图书序号：");
int bookNum = new Scanner(System.in).nextInt();
try {
numChoice(bookNum);
} catch (NameNoMatchException e) {
System.out.println("输入的图书序号不存在");
orderChoice();
}
break;
default:
throw new NameNoMatchException("命令输入错误，请根据提示重新输入");
}
}重新截了一下kindChoice方法 这样好看点
public void nameChoice(String name) throws NameNoMatchException {
String[] books = {"xiyouji" , "hongloumeng" , "zhuxian" , "guichuideng"};
boolean isFind = false;
for (String bookName : books) {
if (bookName.equals(name)) {
System.out.println("book:" + name);
isFind = true;
break;
}
}
if (!isFind) {
throw new NameNoMatchException();
}
}public void kindChoice (int num) throws NameNoMatchException{
switch (num) {
case 1:
System.out.println("请输入图书名称：");
String name = (String)new Scanner(System.in).nextLine().toString();
try {
nameChoice(name);
} catch (NameNoMatchException e) {
System.out.println("输入的图书名字不存在");
//回滚操作
orderChoice();
}
break;
case 2:
System.out.println("请输入图书序号：");
int bookNum = new Scanner(System.in).nextInt();
try {
numChoice(bookNum);
} catch (NameNoMatchException e) {
System.out.println("输入的图书序号不存在");
orderChoice();
}
break;
default:
throw new NameNoMatchException("命令输入错误，请根据提示重新输入");
}
}
在kindChoice方法中获取的控制台输入 汉字比较总是出错
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