JAVA PLEASE

Part 2: Exercises Note: You may want to try these out in an editor to test if they work. Then copy the code here. You don't need to include any of the boilerplate code, like the class definition or the main method signature. Here's an example to get you started (type it out, don't copy paste): public class ReadingAssignment2 { public static void main(String[] args) { //put your code here. This is the only part to include in your answers. } } 1-4 Write the following statements: The first should declare/initialize an integer called "firstNumber" to 5. The second should declare/initialize an integer called "secondNumber" to 4 The third should declare/initialize an integer called "sum" to the sum of firstNumber and secondNilmber The fourth should print out a message that says "the sum is: " and then the sum, using string concatenation. 5. Suppose you have the following code: int original = 7 int sum original + 1; int sumsum - 2 int sum = sum + 3; You will get an error when you compile. What is the error and what does it mean? How would you fix this code? 6-9. Write a series of statements that does the following: Declares a double called "numberOfUnits and assigns the value of 10.8" Declares an integer called "wholeNumber Ofunits and assigns it the value of numberOfUnits, casted to an int. Prints out wholeNumberOfUnits to stdout