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rizumidancer rizumidancer
wrote...
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Posts: 507
Rep: 6 0
4 years ago
Analyze the following code.

class Test {
public static void main(String[] args) {
​StringBuilder strBuf = new StringBuilder(4);
​strBuf.append("ABCDE");
​System.out.println("What's strBuf.charAt(5)? " + strBuf.charAt(5));
}
}


▸ The program has a compilation error because you cannot specify initial capacity in the StringBuilder constructor.

▸ The program has a runtime error because because the buffer's capacity is 4, but five characters "ABCDE" are appended into the buffer.

▸ The program compiles and runs fine.

▸ The program has a runtime error because the length of the string in the buffer is 5 after "ABCDE" is appended into the buffer. Therefore, strBuf.charAt(5) is out of range.
Textbook 
Introduction to Java Programming, Comprehensive Version

Introduction to Java Programming, Comprehensive Version


Edition: 10th
Author:
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jenniferagrethejenniferagrethe
wrote...
#1
Posts: 369
Rep: 49 0
4 years ago
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rizumidancer Author
wrote...

4 years ago
Thanks for your help!!
lolaww
wrote...

Yesterday
Correct Slight Smile TY
Ctownsend
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2 hours ago
Thanks
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