Exam 5: Making Decisions

____ involves choosing between alternative courses of action based on some value within a program.

public class Student {     private int studentNum;     private int studentScore;     public int MAX_NUM = 500;     public int MAX_SCORE = 100;     Student(int num, int score)     {     } Decision making can be used to control the allowed values in an object's fields. In the above code, the Student class contains two fields that hold a student number and a score. A constructor accepts values for these fields as parameters. Write the code between the curly brackets that will determine whether the value of num is less than the MAX_NUM constant. If true, assign the value of num to studentNum . Otherwise, assign the value of MAX_NUM to the studentNum . Then check if the value of score is less than or equal to MAX_SCORE . If true, assign the value of score to studentScore . Otherwise, assign 0 to studentScore .

Create an if statement that checks if the variable salesAmt is greater than or equal to the QUOTA_AMT constant. Use the logical OR operator to also check if salesAmt is greater than or equal to the HIGH_SALES constant. If either expression is true, assign the value of the LARGE_QUOTA constant to the variable bonusAmt .

Using the above flowchart, write the nested if…else statements that will correctly choose among alternative courses of action based on the values of itemsSold and totalValue .

A(n) ____ is particularly useful when two conditions must be met before some action is taken.

When using equals and not equals for comparisons with objects, you compare the objects' ____ instead of actual values.

An alternative to using a Boolean expression, such as quizScore == 10 , is to store the Boolean expression's value in a Boolean variable. How could you express this in Java?

When you use the && operator, you must include a complete _____ on each side.

When working with logical operators, you can always use ____ to change precedence.

You use the NOT operator, which is written as the exclamation point (!), to negate the result of any Boolean expression.

Computers contain switches that are set to on or off.

An alternative to using a Boolean expression, such as someVariable == 10 , is to store the Boolean expression's value in a Boolean variable.

When writing a statement with the two-line format, you must be sure to type a semicolon at the end of the first line in order to ensure accurate results.

When you create a block, you must place multiple statements within it.

Within an if or an else statement, how can you code as many dependent if statements as you need and why is this useful?

You write pseudocode in everyday language, not the syntax used in a programming language.