程序阅读理解题:阅读以下程序,理解for语句的写法,请写出运行结果 1. class Foreach{ public static void main(String arg[]){ int nums[]={1,2,3,4,5,6,7,8,9,10}; int sum=0; for(int x: nums) { System.out.println("value is " +x); sum+=x; } System.out.println("summation:"+sum); } } 2. class Stringbffer{ public static void main(String arg[]){ StringBuffer[] strs=new StringBuffer[10];// 字符缓冲区,引用类型(类) for(int i=0;i<10;i++){ strs[i]=new StringBuffer(""+i); } for(StringBuffer str: strs) { System.out.println("value is " +str); str.append("Change"); } for(StringBuffer str: strs){ System.out.println("value is " +str); } } }