Java遍历数组的3种方式

第一种：for循环

//遍历数组
public class ThroughTheArray{
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int[] arr = {12,4,1,66,54,6,74,-3};//静态创建一个数组
		for (int i = 0; i < arr.length; i++) {
			System.out.print(arr[i] + ",");
		}
	}
}

运行结果图：

第二种：增强for循环foreach

//遍历数组
public class ThroughTheArray {
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int[] arr = {12,4,1,66,54,6,74,-3};//静态创建一个数组
		for (int i : arr) {
			System.out.print(i + ",");
		}
	}
}

运行结果图：

第三种：利用jdk自带的方法  --> java.util.Arrays.toString()

//遍历数组
public class ThroughTheArray {
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int[] arr = {12,4,1,66,54,6,74,-3};//静态创建一个数组
		System.out.println(java.util.Arrays.toString(arr));
	}
}

运行结果图：