- What is a variable? Where is it used? How can we create a variable in Java? - What is the camel hump notation? Please give an example. - Please use Java code for the following cases: declare an integer variable declare an integer variable and initialize 6 declare an integer variable and assign 8 declare an integer constant declare an integer constant and initialize 2 - What are the wrongs following variable definitions int for =10; String class; int double =10.0; int 6 pack =6; int 12pack; - What is a constant? Where is it used? What are the differences between variables? - What is the advised method for formatting a constant name? - Please explain and give samples for the three types of Java Comments. - What is the result following Java codes int fiftyMillion =50000000; System.out.println(100* fiftyMillion); - What is wrong with the following variable declaration? int ounces per liter =28.35; Please prepare a state diagram for the lines 4 and 8 1 double a=5.0; 2 double b=7.0; 3 String c=" MIS 103"; 4 5b=a+5.0; 6a=b+5.0; 7 String c=c+ "Midterm Exam"; 8 Write a Java code that covers the following steps: Prompt to screen to enter a user name and then surname separately. Check whether inappropriate entering a number, space, or null and warn in case of inappropriate show the whole length of the name and surname together, then the first letters of the name and surname