Write a Java program that includes in its class the following methods:
- - A method named duplicateSentence that takes a String and an integer, and returns a
- String that consists of duplicating the passed String number of times that equals the
- passed integer on separate lines.
- For example, if the passed String is Welcome to Java!, and the passed integer is 4, the
- returned String should be:
- Welcome to Java!
- Welcome to Java!
- Welcome to Java!
- Welcome to Java!
- - A method named calculate that takes two double numbers and a character as
- parameters. The character must be one of the four main operations +, -, *, or /. The
- method must return a String that consists of the full equation that includes the two
- numbers, the operation and the result.
- For example, if the passed double numbers are 3.5 and 2.1, and the passed operation is
- +, the returned String must be as follows:
- 3.5 + 2.1 = 5.6
- If the passed character does not represent any of the four main operations, the method
- must return the following String: “Wrong operation”.
- - In your main method, test the above two methods:
- o Print the String (Coding is fun!) 10 times by invoking the method
- duplicateSentence.
- o Declare two double variables, and invoke the method calculate and print the result
- of their addition, subtraction, multiplication, and division