Java数组05：数组的使用

public class ArrayDemo03 {
    public static void main(String[] args) {
        int[] arrays = {1,2,3,4,5};

        //打印全部的数组元素
        for(int i = 0;i < arrays.length;i++){
            System.out.println(arrays[i]);
        }
        System.out.println("====================");

        //计算所有元素的和
        int sum = 0;
        for(int i = 0;i < arrays.length;i++){
            sum+=arrays[i];
        }
        System.out.println("sum="+sum);
        System.out.println("====================");

        //查找最大元素
        int max = arrays[0];
        for(int i = 1;i < arrays.length;i++){
            if(arrays[i]>max){
                max = arrays[i];
            }
        }
        System.out.println("max="+max);
    }
}

public class ArrayDemo05 {
    public static void main(String[] args) {
        int[] arrays = {1, 2, 3, 4, 5};
        int[] result = reserve(arrays);
        for(int i=0;i<arrays.length;i++){
            System.out.print(result[i]);
        }

    }

    // 反转数组
    public static int[] reserve(int[] arrays) {
        int[] result = new int[arrays.length];
        for (int i = 0; i < arrays.length; i++) {
            result[i] = arrays[arrays.length - 1 - i];
        }
        return result;
    }
}