java.util.Arrays toString方法将数组转化成String

import java.util.Arrays;
                 
private void testArrays（）{
   int [] test = {1,2,3};
   byte [] byteTest = {0x01,(byte)0x1a,3};
   System.out.println(Arrays.toString(byteTest)); //输出[1, 26, 3]
   System.out.println(Arrays.toString(test));//输出 [1, 2, 3]
}