Write a program in Java to enter any sentence. Also ask the user to enter a word. Print the number of times the word entered is present in the sentence. If the word is not present in the sentence, then print an appropriate message.

Write a Java program to enter any sentence and convert the sentence to uppercase. Print only those words of the sentence whose first and last letters are the same.

Which of the following returns a String?

1. length()
2. charAt(int)
3. replace(char, char)
4. indexOf(String)

The output of the statement "talent".compareTo("genius") is:

1. 11
2. –11
3. 0
4. 13