Which of the following methods is used to extract a single character from a string?

The _______________ method searches for the first occurrence of a character or substring.

Which of the following methods is used to pre-allocate a space for a certain number of characters, after a StringBuffer has been constructed?

Which of the following methods returns the value of the invoking object as a byte?

Which of the following methods is used to find the execution of the various parts of a program?

The _________ method is used to perform a comparison that ignores the case differences, i.e. it considers A - Z to be the same as a - z.

Which of the following methods returns true, if the invoking object contains infinite values?

Which of the following methods returns the total number of bytes of the memory available to a program?

Which of the following methods displays the call stack for threads?

The ___________ method determines whether the string in the question ends with a specified string or not.

If we want to convert all the characters in a String object into a character array, we use the _________ method.

Which of the following package methods returns the name of the invoking package?

Which of the following interfaces enables you to work with a group of objects?

______________ collection class extends the AbstractList for a collection that uses sequential access, rather than the random access of its elements.

Which of the following thread group methods returns the number of threads in a group, along with the group, for which this thread is a parent?