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memorize.ai (lvl 286)

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Section 1

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World Wide Web

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1 / 17

Java

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6 years ago

Date created

Mar 1, 2020

Cards (17)

Section 1

(17 cards)

World Wide Web

Front

www runs on the internet

Back

Give examples of compile-time (syntax), run-time, and logical errors.

Front

Compile-time: forgetting a semi-colon; typing a brace instead of a parenthesis Run-time: dividing by zero Logical: The output displays Hello Word instead of Hello World

Back

If a program is not using whitespace properly, the program is not indented and spaced in a readable form, but

Front

will work properly regardless of the spacing.

Back

What does it mean to say Java is case-sensitive?

Front

Writing a word in the Java text like String or string are different. Creating an identifier Happy is different than HAPPY.

Back

What is another name for the brain of the computer?

Front

CPU

Back

What does the string concatenation operator, the plus sign (+)

Front

string concatenation operator, the plus sign (+), allows you to add one string to another.

Back

How many distinct items or values can 1 bit hold, 2 bits, 3 bits...

Front

n bits = 2^n items

Back

What cycle do computers continuously follow?

Front

fetch-decode-execute

Back

java

Front

object oriented

Back

comments

Front

do not effect the program

Back

An if statement is used in Java code to:

Front

execute certain statements based on the value of a variable

Back

compiling is the process by which:

Front

program code is translated into machine code

Back

print.ln

Front

out put is on different lines

Back

What is a byte?

Front

One byte equals 8 bits.

Back

print

Front

output is on the same line

Back

Is RAM or ROM volatile? What does it mean to be volatile?

Front

RAM. If the power is turned off or lost, you lose what is stored in the RAM.

Back

What characters are allowed in identifiers?

Front

Numbers Letters $ _ (underscore)

Back