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public class Jb17_ArrDemo
{
public static void main(String[] args)
/*数组定义格式1：
元素类型[] 数组名 = new 元素类型[元素个数或数组长度];
格式2：
元素类型[] 数组名 = new 元素类型[] {元素,元素,........};
数组的操作，对角标进行操作，从0角标开始。
*/
//int [] arr = new int[]{2,54,4,5,4,4,5,79};
int [] arr = {-2,-5,-79,-9};
for (int x=0;x<arr.length ; x++)
System.out.println("arr["+x+"] = "+arr[x]);
}
int max = getMax(arr);
System.out.println("最大值是"+max);
//定义功能求数组最大值
public static int getMax(int[] arr)
int max = arr[0];
for (int x=1 ;x<arr.length ;x++ )
if (arr[x]>max)
max = arr[x];
return max;
