用java实现两个数组合并

以下是使用Java实现合并两个数组的示例代码：

public class MergeArrays {
    public static void main(String[] args) {
        int[] array1 = {1, 2, 3};
        int[] array2 = {4, 5, 6};
        int[] mergedArray = mergeArrays(array1, array2);
        System.out.println(Arrays.toString(mergedArray));
    }

    public static int[] mergeArrays(int[] arr1, int[] arr2) {
        int[] mergedArr = new int[arr1.length + arr2.length];
        int i = 0, j = 0, k = 0;
        while (i < arr1.length && j < arr2.length) {
            if (arr1[i] < arr2[j]) {
                mergedArr[k++] = arr1[i++];
            } else {
                mergedArr[k++] = arr2[j++];
            }
        }
        while (i < arr1.length) {
            mergedArr[k++] = arr1[i++];
        }
        while (j < arr2.length) {
            mergedArr[k++] = arr2[j++];
        }
        return mergedArr;
    }
}

输出结果为：[1, 2, 3, 4, 5, 6]