User talk:Paopao86
Add topicHOW TO DECLARE VARIABLE IN RUBY PROGRAMMING LANGUAGE
You can manipulate variables in exactly the same way that you would manipulate the objects that they represent.
Ruby Gem
'>>var1=7 =>7 >>var2=4 =>4
>>var3 = var1 + var 2 =>11
>>var = "hello" => "hello" >> var4 = var4 * var2 => hellohellohellohellohello
>> num1 = 2 + 4 + 6 + 8 => 20 >> num1 = num1/5 => 24 >> num2 = num2 - num1 =>20
num1 = num1 / 5 num2 = num2 - num1 These kinds of expressions are very common, so Ruby offers you some shortcuts:
Example Shortcut Meaning var = var + 2 var += 2 Add 2 to var var = var - 3 var -= 3 Subtract 3 from var var = var * 6 var *= 6 Multiply var by 6 var = var / 2 var /= 2 Divide var by 2 var = var** 3 var **=3 Cube var var = var % 4 var %= 4 var modulo 4
http://myblogpaopao86.blogspot.com/ By: John Paul Mamaril
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