Question from Marcus Green's exam
geeta rai
Ranch Hand
Posts: 48
posted 13 years ago
String s=new String("Bicycle");
int iBegin=1;
char iEnd=3;
System.out.println(s.substring(iBegin,iEnd));
1) Bic
2) ic
3) icy
4) error: no method matching substring(int,char)
The answer is (4). Does the char value always get converted to int, even in the case of substring function?
int iBegin=1;
char iEnd=3;
System.out.println(s.substring(iBegin,iEnd));
1) Bic
2) ic
3) icy
4) error: no method matching substring(int,char)
The answer is (4). Does the char value always get converted to int, even in the case of substring function?
Gian Franco
blacksmith
Ranch Hand
Ranch Hand
Posts: 979
Vicken Karaoghlanian
Ranch Hand
Posts: 522
posted 13 years ago
Hi geeta, the answer is 2 and not 4 as you pointed out. The 'char' datatype is implicitly casted to 'int' since 16-bit fits perfectly in 32-bit.
The signatures for the substring method are:
1) substring (int beginIndex)
2) substring (int beginIndex, int endIndex)
Hope this helps.
The signatures for the substring method are:
1) substring (int beginIndex)
2) substring (int beginIndex, int endIndex)
Hope this helps.
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