Programming Example
Associativity and precedence in operators example in java
Associativity and precedence in operators example in java
/*
* Here we will see the effect of precedence in operators life
*/
public class OperatorAssociativityExample {
public static void main(String args[]) {
int i = 40;
int j = 80;
int k = 40;
int l = i / k * 2 + j;
/*
* In above calculation we are not using any bracket. And there are two
* operator of same precedence(divion and multiplication) so which
* operator(/ or *) will be evaluated first is decided by association.
* Associativity of * & / is left to right. So divison will be evaluated
* first then multiplication.
*
* So the output will be 82.
*/
System.out.println("value of L :" + l);
int m = i / (k * 2) + j;
/*
* In above calculation brackets are used so associativity will not come
* in picture and multiply(*) will be evaluated first and then
* divison()/. So output will be 80
*/
System.out.println("Value of M:" + m);
}
}
value of L :82
Value of M:80
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First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.