数组使用
1.普通的For循环
2.For-Each循环
3.数组作方法人参
4.数组作返回值
public static void main(String[] args) {
int[] arrays = {1,2,3,4,5,};
//JDK1.5, 没有下标
//for (int array : arrays){
//System.out.println(array);
//printArray(arrays);
int[] reverse = reverse(arrays);
printArray(reverse);
}
//反转数组
public static int[] reverse(int[]arrays){
int[] result = new int[arrays.length];
//反转操作
for (int i = 0,j=result.length-1; i < arrays.length;i++,j--) {
result[j] = arrays[i];
}
return result;
}
//打印数组元素
public static void printArray(int[] arrays){
for (int i = 0; i < arrays.length; i++) {
System.out.print(arrays[i]+" ");
}