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53. Operator Precedence

The following row shows the order of precedence for Java operators:

 Highest  ( )    !    *   /  %  +   -  >  >=  <  <=  ==  !=  &   |  ?:  =  Lowest 

As its not possible to go through the examples of how each and every operator is having priority over other operator, I'm going to example the operator precedence with  only one example.

Program to demonstrate the difference before and after using the high priority operator '( )'                                                                                        

class OperatorPrecedence
   public static void main(String args[])
      int a=3,b=4,c=5,d,e;

      d=a*b+c;    // without using high priority operator '( )' -> a*b+c i.e. 3*4+c i.e. 12+c i.e. 12+5 i.e. 17
      e=a*(b+c);  //After using high priority operator '( )' -> a*(b+c) i.e. a*(4+5) i.e. a*9 i.e. 3*9 i.e. 27

      System.out.println("Without using the parenthesis the result is "+d);
      System.out.println("After using the parenthesis the result is "+e);

Output of this program:

Without using the parenthesis the result is 17
After using the parenthesis the result is 27

Please comment below to feedback or ask questions.

How to use the 'if' conditional statement will be explained in the next step


puneet said...

Hi Arun,

Just wanted to let you know that in your post you forgot to add an additional close braces.


Arun Motoori said...

@Puneet - Updated. Thank You Very Much :)

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