Java 中将数组转换为字符串

在示例中，我们创建了一个 int 类型的数组 arrayOfInts，并用一些项目填充它。要将 arrayOfInts 转换为字符串，我们使用 Arrays.toString() 并将其作为参数传递，该参数返回我们在输出中打印的字符串 arrayToString。

 

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import java.util.Arrays;

public class ArrayToString {
    public static void main(String[] args) {

        int[] arrayOfInts = {1, 3, 9, 11, 13};

        String arrayToString = Arrays.toString(arrayOfInts);

        System.out.println(arrayToString);
        
    }
}

 

输出：

[1, 3, 9, 11, 13]

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public class ArrayToString {

    public static void main(String[] args) {

        String[] arrayOfStrings = {"One", "Two", "Three", "four", "Five"};

        String arrayToString = String.join(" ", arrayOfStrings);

        System.out.println(arrayToString);

    }
}

输出：

One Two Three four Five
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import java.util.Arrays;
import java.util.stream.Collectors;

public class ArrayToString {
    public static void main(String[] args) {

        String[] arrayOfStrings = {"One", "Two", "Three", "four", "Five"};

        String arrayToString = Arrays.stream(arrayOfStrings).collect(Collectors.joining());

        System.out.println(arrayToString);

    }
}

输出：

OneTwoThreefourFive

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