Java 可能返回一个字符串数组

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时间:2020-08-14 06:03:03  来源:igfitidea点击:

Possible to return a String array

javaarraysclassobjectmethods

提问by Luron

Is it possible to make a method that returns a String[]in java?

是否可以String[]在java中创建一个返回a的方法?

采纳答案by Mark Byers

Yes, but in Java the type is String[], not string[]. The case is important.

是的,但在 Java 中,类型是String[],而不是string[]。案情很重要。

For example a method could look something like this:

例如,一个方法可能如下所示:

public String[] foo() {
    // ...
}

Here is a complete example:

这是一个完整的例子:

public class Program
{
    public static void main(String[] args) {
        Program program = new Program();
        String[] greeting = program.getGreeting();
        for (String word: greeting) {
            System.out.println(word);
        }
    }

    public String[] getGreeting() {
        return new String[] { "hello", "world" };
    }
}

Result:

结果:

hello
world

ideone

ideone

回答by Mark Peters

Yes.

是的。

/** Returns a String array of length 5 */
public String[] createStringArray() {
    return new String[5];
}

回答by Grodriguez

Yes:

是的:

String[] dummyMethod()
{
    String[] s = new String[2];
    s[0] = "hello";
    s[1] = "world";
    return s;
}

回答by John Gardner

yes.

是的。

public String[] returnStringArray()
{
    return new String[] { "a", "b", "c" };
}

Do you have a more specific need?

您有更具体的需求吗?

回答by superfell

Sure

当然

public String [] getSomeStrings() {
    return new String [] { "Hello", "World" };
}