Which code fragment prints Hello world? A. sb.insert(0,"Hello "); System.out.println(sb); B. sb.append(0,"Hello "); System.out.println(sb); C. sb.add(0,"Hello "); System.out.println(sb); D. sb.set(0,...

Which set modifications enable the code to compile and run?

在一篇很長的文章或是一大串文字中找出自己想看到的段落是我們時常會需要做的事情，但是要如何有效率地讓電腦尋找文字中的文字是一件需要思考的事情，甚至有許多針對這個議題所提出的研究論文。字串搜尋演算法的好壞，在複雜的文件內容下，對搜尋時間的影響是非常深遠的。字串搜尋除了能夠正確搜尋一段文字內的特定字串外，還可以用來搜尋龐大的任意資料，因為任何的資料都可以藉由數位編碼轉成只有數字的字串，如一段原始的聲音，...

What is the result? A. [green, red, yellow, cyan] B. [green, blue, yellow, cyan] C. [green, red, cyan, yellow] D. Am IndexOutOfBoundsException is thrown at runtime

Which modification enables the code fragment to print TrueDone? A. Replace line 5 With String result = "true"; Replace line 7 with case "true": B. Replace line 5 with boolean opt = l; Replace line 7 ...

What is the result? A. 2 4 6 8 B. 2 4 6 8 9 C. 1 3 5 7 D. 1 3 5 7 9

What is the result? A. Hello Java! 8 Hello Java! 6 Hello Java! 4 B. Hello Java! 8 Hello Java! 6 C. Hello Java! 8 D. Compilation fails

Which statement is true? A. After line 8, three objects are eligible for garbage collection B. After line 8, two objects are eligible for garbage collection C. After line 8, one object is eligible fo...

What is the result? A. 12 B. Invalid Index 12 C. Invalid Index D. Compilation fails

What is printed out when the program is excuted? A. one B. two C. three D. four