java[Ljava.lang.String；@5d79a22d结果

Question

当我运行程序并输入输入时，结果是[Ljava.lang.String;@5d79a22d 我不知道这意味着什么，也不知道为什么会发生。 这是我计划的一部分：

Scanner s = new Scanner(System.in);
//first input
System.out.println("Enter your first input: ");
String first = s.nextLine();
String[] firstsplit = first.split(", ");
//second input
System.out.println("Enter your second input: ");
String second = s.nextLine();
String[] secondsplit = second.split(", ");
//third input
System.out.println("Enter your third input: ");
String third = s.nextLine();
String[] thirdsplit = third.split(", ");
//fourth input
System.out.println("Enter your fourth input: ");
String fourth = s.nextLine();
String[] fourthsplit = fourth.split(", ");
//fifth input
System.out.println("Enter your fifth input: ");
String fifth = s.nextLine();
String[] fifthsplit = fifth.split(", ");
//declares array of numbers for whites with given numbers

String[] subset1white= Arrays.copyOfRange(firstsplit, 1, Integer.parseInt(firstsplit[0]));
System.out.println(subset1white);

任何帮助都将不胜感激

Answer 1

这是因为您正在调用正则数组的toString方法

试试这个：

System.out.println(Arrays.toString(subset1white));

Answer 2

您应该使用^{}方法，如下所示：

System.out.println(Arrays.toSting(subset1white));

一定要把

import java.util.Arrays;

在你们班上名列前茅。默认情况下，打印数组将使用^{}'s ^{} method，返回

getClass().getName() + '@' + Integer.toHexString(hashCode())

Arrays.toString(Object[])将返回如下字符串：

[abc, 123, def, 456]