如何返回多个值？

有没有可能在 Java 中从一个方法返回两个或更多的值到 main？如果是这样，怎么可能，如果不是，我们怎么办？

java

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小开

You can return an object of a Class in Java.

If you are returning more than 1 value that are related, then it makes sense to encapsulate them into a class and then return an object of that class.

If you want to return unrelated values, then you can use Java's built-in container classes like Map, List, Set etc. Check the java.util package's JavaDoc for more details.

小开

You can only return one value, but it can be an object that has multiple fields - ie a "value object". Eg

public class MyResult {
int returnCode;
String errorMessage;
// etc
}


public MyResult someMethod() {
// impl here
}

小开

You can do something like this:

public class Example
{
public String name;
public String location;


public String[] getExample()
{
String ar[] = new String[2];
ar[0]= name;
ar[1] =  location;
return ar; //returning two values at once
}
}