* * */ public class Demo04ArrayLength { public static void main(String[] args) { int[] arrayA = new int[3]; int[] arrayB = {1,2,3,4,5,96,48,14,20,77,5,66,44,122,36,47,222,95,46,485,123}; int len = arrayB.length; System.out.println("arrayB数组的长度是: "+ len...
当然返回一个int数组就行啦,反正4位byte转换成1个int,看着办就行。 public int[] bytesToInts(byte[] bytes){ int bytesLength=bytes.length; int[] ints=new int[bytesLength%4==0? bytesLength/4:bytesLength/4+1]; int lengthFlag=4; while (lengthFlag<=bytesLength){ ints[lengthFlag/4-1]=(...
1. int[] arr = new int[3]; http://2.int[] arr = new int[]{1,2,3,4,5}; http://3.int[] arr = {1,2,3,4,5}; 1. 2. 3. 不论哪种方式,都要明确数组的长度,长度一旦指定,不可更改。这是因为,数组在创建时,要先根据设定的长度去申请内存大小,生成之后就那么大的空间,不能再多...