java可变参数案例学习

/*

** 可变参数案例

*/

public class changeVar {

public static void main(String[] args) {

    printMax(34, 3, 2, 1);
    printMax(new double[]{1, 2, 31, 42});

}

public void test(int x, int... i) {
    //可变参数只能放在参数最后面

}

//排序算法，取最大值
public static void printMax(double... numbers) {
    if (numbers.length == 0) {
        System.out.println("No argument passed.");
        return;
    }
    double result = numbers[0];
    //排序
    for (int i = 0; i < numbers.length; i++) {
        if (numbers[i] > result) {
            result = numbers[i];
        }
    }
    System.out.println("The max value is " + result);
}

}