用Java本题要求实现两个函数，将10进制整数转换为2进制和16进制。

可以的，我能够回答这个问题。下面是Java实现10进制转2进制和16进制的代码：

转2进制：

public static String decToBinary(int n) {
    String binary = "";
    while (n > 0) {
        binary = (n % 2) + binary;
        n = n / 2;
    }
    return binary;
}

转16进制：

public static String decToHex(int n) {
    String hex = "";
    while (n > 0) {
        int remainder = n % 16;
        switch (remainder) {
            case 10:
                hex = "A" + hex;
                break;
            case 11:
                hex = "B" + hex;
                break;
            case 12:
                hex = "C" + hex;
                break;
            case 13:
                hex = "D" + hex;
                break;
            case 14:
                hex = "E" + hex;
                break;
            case 15:
                hex = "F" + hex;
                break;
            default:
                hex = remainder + hex;
                break;
        }
        n = n / 16;
    }
    return hex;
}

希望这些代码可以帮助您。