在一行上打印随机数组：Java

Question

正在构建一个可以在数组内生成随机整数值的数组。它打印随机数，但它是这样打印的 [10][2][5][7][6][2][4][7][2][10][0]--->（在旁边）-------- > 并希望它像这样打印 [10,7,5,9,4,3,4,7,2,3]（一行）。

   public class ArrayLab
{
    //array instance variable
    private int[] array1 = new int[10];

    //array constructor
    public ArrayLab(int integer)
    {
        //class parameter = 10
        int[] array1 = new int[]{integer};

    }

    public void initialize()
    {
         //allow randomization of numbers inside the array field.

        System.out.println(Arrays.toString(array1)); 
        //prints [0,0,0,0,0,0,0,0,0,0] which is ok

        System.out.println();
        for (int iteration = 0; iteration < array1.length; iteration ++)
        {
            Random number = new Random(); 
            number.nextInt(10);
            int n = number.nextInt(11);
            int[] array1 = new int[]{n};

            System.out.println(Arrays.toString(array1));
           //prints down the side. Want on one line?
        }

    }
}

Answer 1

只是改变

System.out.println(Arrays.toString(array1)); 
//new output
System.out.print(Arrays.toString(array1));

完成此操作的另一种方法是使用 for 循环以类似方式遍历数组

for( int i = 0; i < array1.length; i++ ){
    System.out.print(array1[i]+" ");
}

对于随机数

Random ran = new Random();
for( int i = 0; i < array1.length; i++ ){
    int number = ran.nextInt((max - min) + 1) + min;
    //insert the maximum and min values for your generator
    array1[i] = number;

在一行上打印随机数组：Java

Print random array on one line: Java

java

arrays

random

for-loop

tostring