JavaScript将一个数组插入到另一个数组的方法.分享给大家供大家参考.具体分析如下: 1.通过Array.prototype.push.apply方法将一个数组插入到另外一个数组,下面的代码将数组b插入到a var a = [2,3,4]; var b = [5,6,7]; Array.prototype.push.apply(a,b); console.log(a);//[2,3,4,5,6,7] 2. 通过concat连接 var a = [4,5,6]; var b = [7,8,9
public class Test3 { public static void main(String[] args) { int[] grade = {87,88,89,98,78}; int m; for(int i = 0; i < 2; i++){ m = grade[i]; grade[i] = grade[5-i-1]; grade[5-i-1] = m; } for(int j =0; j < 5; j++){ System.out.println(grade[j]); } }
Java中两个或多个byte数组合并及int类型转数组 // 用list好处是可以未知多个? public static byte[] test(List<byte[]> values) { int lengthByte = 0; for (byte[] value : values) { lengthByte += value.length; } byte[] allBytes = new byte[lengthByte]; int countLength = 0; for (byte[]