Java for循环遍历求和与增强型遍历求和

1.非增强型遍历求和：

package a;

public class a1 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int sum=0;
     int [] a= {34,67,78,56,90,98,76};
     for(int i : a) {
    	 sum+=i;
     }
     System.out.print(sum);
	}

}

2.增强型遍历求和：

import java.util.Arrays;

public class Shuzhu {

	
	    public static void main(String[] args) {
	    	
	    	//用增强型for循环遍历二维数组
	        int [][]A={{1},{1,1},{1,2,1},{1,3,3,1},{1,4,6,4,1}};
	        for (int x[]: A) {
	            System.out.print(Arrays.toString(x));
	            
	            
	            for(int i : x) {
	            	System.out.print(i);
	            	System.out.print(" ");
	            }
	        }
	      
	    }


	    
}