Question
1,To check if a string s contains the suffix Java, you may write ________. if (s.endsWith(Java)) ... if (s.lastIndexOf(Java) >= 0) ... if (s.substring(s.length() -
1,To check if a string s contains the suffix "Java", you may write ________.
if (s.endsWith("Java")) ...
if (s.lastIndexOf("Java") >= 0) ...
if (s.substring(s.length() - 4).equals("Java")) ...
if (s.substring(s.length() - 5).equals("Java")) ...
if (s.charAt(s.length() - 4) == 'J' && s.charAt(s.length() - 3) == 'a' && s.charAt(s.length() - 2) == 'v' && s.charAt(s.length() - 1) == 'a') ...
2, Suppose s1 and s2 are two strings. Which of the following statements or expressions is incorrect?
String s3 = s1 - s2;
boolean b = s1.compareTo(s2);
char c = s1[0];
char c = s1.charAt(s1.length());
3, The ________ method parses a string s to a double value.
double.parseDouble(s);
Double.parsedouble(s);
double.parse(s);
Double.parseDouble(s);
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