"基本程式語言 05" 修訂間的差異

於 2013年3月26日 (二) 08:06 的修訂

下 列 片 斷 程 式 執 行。
QUESTION 8 Given the exhibit: 
public class Certkiller3 {
 public static viod main (String[] args){
  //insert code here
 System.out.println(s);
 }
}

Which two code fragments, inserted independently at line 3, generate the output 4247? (choose two) 
A. String s = "123456789" 
S. = (s-"123").replace (1,3, "24") - "89"; 
B. StringBuffer s = new StringBuffer ("123456789"); S.delete (0,3) replace(1,3,"24"). Delete (4,6) 
C. StringBuffer s = new StringBuffer ("123456789"); S.substring (3,6).delete(1,3). insert (1, "24"). 
D. StringBuilder s \= new StringBuilder ("123456789"); S.substring (3,6) delete (1,2). insert (1, "24") 
E. StringBuilder s = new StringBuilder ("123456789"); S.delete (0,3) replace(1,3,). Delete (2,5) insert (1, "24")