Java 是否具有等效的 StringStream？
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Does Java have an StringStream equivalent?
提问by SomeStudent
So I am trying to get back into Java after doing C++ for quite some time, I decided to practice by rewriting my C++ programs into Java. Now in my Min Max Program I have the following lines of code:
所以我在做 C++ 一段时间后试图重新回到 Java，我决定通过将我的 C++ 程序重写为 Java 来练习。现在在我的 Min Max 程序中，我有以下几行代码：
//C++ Code Sample
getline(cin,mystr);
stringstream(mystr) >> value;
max = value;
min = value;
stringstream stream(mystr);
while(stream >> value)
{
if(value > max)
{
max = value;
}
else if(value < min)
{
min = value;
}
}
Now, getline is equivalent to using the Scanner class, but what of the StringStream? While searching I saw people mentioning InputStream, but that seems to be related to reading from a file, ex: http://www.tutorialspoint.com/java/io/inputstream_read.htm.
现在，getline 相当于使用 Scanner 类，但是 StringStream 呢？在搜索时，我看到有人提到 InputStream，但这似乎与从文件中读取有关，例如：http: //www.tutorialspoint.com/java/io/inputstream_read.htm。
Thus, I was wondering if I can get similar functionality? I could of course also ask the user to specify how many inputs they wish to type in, and then just populate an array; but that seems awkward.
因此，我想知道我是否可以获得类似的功能？我当然也可以要求用户指定他们希望输入的输入数量，然后填充一个数组；但这似乎很尴尬。
Update:
更新：
I created a quick work around that works as follows:
我创建了一个快速解决方法，其工作方式如下：
String in = "";
while(true)
{
in = input.nextLine();
if(in.equalsIgnoreCase("DONE"))
{
break;
}
value = Integer.parseInt(in);
if(value > max)
{
max = value;
}
else if(value < min)
{
min = value;
}
}
回答by D.Shawley
You can use java.util.Scannerto parse a Stringusing Scanner(String). You can also use java.lang.StringBuilderto construct strings in an efficient manner.
您可以使用java.util.Scanner来解析Stringusing Scanner(String)。您还可以使用java.lang.StringBuilder以高效的方式构造字符串。
