Java Syntax






Click on a word to understand it's syntax!


If statement

if A Java reserved word
(condition)Must be a boolean expression

{

statements;

statements;

Statements to be run if condition is true are placed inside { } }

If else statement

if A Java reserved word
(condition) Must be a boolean expression

{

statements1;

Statements to be run if condition is true are placed inside { }

}
else
A Java reserved word

{

statements2;

Statements to be run if condition is false are placed inside { }

}

switch statement

switch
(expression) expression is compared to the values
{

case value1 :

note syntax! case value followed by a colon :

statement1;

runs statement1 if expression equals value1

break;

case value2 :

case value3 :

statement2;

runs statement2 if expression equals value2 or value3

break;

default :

statement0;

run statement0 if expression did not equal any of the values

}

while-loop statement

while Java reserved word
(condition must be a boolean expression
) ( ) around condition are essential punctuation

{

statements;

The java statements to run and repeat for as long as condition is true are placed inside { }

}

do while-loop statement

do Java reserved word

{

statements;

The java statements to run and repeat for as long as condition is true are placed inside { }

}


while Java reserved word
(condition must be a boolean condition
); ( ) around condition and the semi-colon ; are all essential punctuation