Java

Front 1

Standard Main Method

Back 1

public static void main(String[] args) {

}

Front 2

Comment

Back 2

Begins with // and is a description in the program, does not tell the system to do anything

Front 3

variables

Back 3

int

Front 4

2 ways to declare a Variable

Back 4

int myNumber = 88;

or

int Mynumber;

myNumber = 88

Front 5

How many primitive types of variables in java?

Back 5

int myNumber

short myShort = 16 bit number

long myLong = long number

double myDouble = 7.324 15 digits

float myFloat = 324.3;

char myChart = 'y'; 16 bit unsigned

bolean myBoolean = true or false

byte myByte = 127; 8 bit number

Front 6

int

Back 6

used to count things

primitive, not an object

mutable - can change value any time

contains a single int field

Front 7

Ctrl+shift+f

Back 7

format

Front 8

boolean

Back 8

true or false

Front 9

i ++ short cut

Back 9

i = i + 1

Front 10

for loop

Back 10

can declare integer

two semi colons

Front 11

System.out.printf( %d, i)

Back 11

string with format specifier

Front 12

\n

Back 12

new line

Front 13

!=

Back 13

does not equal

boolean cond = 5 != 8;

system.out.println(cond);

"true"

Front 14

==

Back 14

test for equality

Front 15

int myInt = 20;

if (myInt <10) {
System.out.println("Yes, it's true!");

}
else if(myInt > 20) {
System.out.println("No, it's false!");

Back 15

blank

Front 16

int myInt = 30;

if (myInt <10) {
System.out.println("Yes, it's true!");

}
else if(myInt > 20) {
System.out.println("No, it's false!");

}

Back 16

"No it's false!"