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IT6008 - Computer Programming 1

IT6008 - Computer Programming 1

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In the variable declaration below:

int total;

What is "int" ?

It indicates that the variable's value is constant.

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The variable's name (identifier)

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The variable's data type.

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The variable's value.

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Select the right conversion type for each of the provided definitions:

...treat a value temporarily as another type.

...occurs when a value of one type is assigned to a variable of another.

...happens automatically when operators in expressions convert their operands.

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Look at the code below:

int salary = 400;

salary++;

What is the value of the variable "salary"?

402

500

401

1,000,000

400

A variable can hold multiple values at any time.

True

False

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What is the difference between a constant and a variable?

A constant's value remains unchanged during its entire existence

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Constants and variables are the exact same thing.

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Constants can only be assigned numerical values.

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A constant can hold more than one value at once.

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Which one of the following is not true about Assignment Statements?

The assigned value must match the variable's data type.

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The variable's current value is overwritten by the newly assigned value.

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The assignment operator is a plus sign '+'

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The expression on the right is processed and the result is stored in the variable on the left.

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double score;

int points = 10;

score = points;

The code above is an example of what type of conversion?

A Narrowing conversion

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A widening conversion

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When do we normally design algorithms?

If our code does not work

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Before writing our code

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After we are done coding

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Choose a description from the ones listed below that best describes the following flowchart:

Read age value from user and store in age variable. Display "too young" message if age value was less than 16. Otherwise, display "too old" message if age value was larger than 32. Otherwise, display "eligible" message.

Read age value from user and store in age variable. Display "too old" message if age value was larger than 32. Otherwise, display "too young" message if age value was less than 16. Otherwise, display "eligible" message.

Read age value from user and store in age variable. Display "eligible" message if age is between 16 and 32. Otherwise, display "too young" message if age value was less than 16. Otherwise, display "too old" message if age value was larger than 32.

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What does the following code do?

double total = 100.50;

total = 200.75;

System.out.println(total);

It causes a compilation error

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It prints the value 100.50

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It throws an exception during runtime

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