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Fill in the blanks in each of the following statements: a) All programs can be written in terms of three types of control structures: ________, ________ and _______. b) The ________ statement is used to execute one action when a condition is true and another when that condition is false. c) Repeating a set of instructions a specific number of times is called ______ repetition. d) When it's not known in advance how many times a set of statements will be repeated, \(a(n)\) ______ value can be used to terminate the repetition. e) The _______ structure is built into Java; by default, statements execute in the order they appear. f) Instance variables of types char, byte, short, int, long, float and double are all given the value _______ by default. g) Java is a(n) ______ language; it requires all variables to have a type. h) If the increment operator is _______ to a variable, first the variable is incremented by \(1,\) then its new value is used in the expression.

Determine the value of the variables in the statement product \(=x++;\) after the calculation is performed. Assume that all variables are type int and initially have the value 5.

Explain what happens when a Java program attempts to divide one integer by another. What happens to the fractional part of the calculation? How can you avoid that outcome?

( Square of Asterisks) Write an application that prompts the user to enter the size of the side of a square, then displays a hollow square of that size made of asterisks. Your program should work for squares of all side lengths between 1 and 20 .

(Palindromes) A palindrome is a sequence of characters that reads the same backward as forward. For example, each of the following five-digit integers is a palindrome: 12321,55555,45554 and \(11611 .\) Write an application that reads in a five-digit integer and determines whether it's a palindrome. If the number is not five digits long, display an error message and allow the user to enter a new value.