Java Operator Precedence

If there are multiple operators in java and it has to do certain actions based on that java programming language has certain precedence over the operators.

It means it will determine what operator goes first against the other operator.

Also, The large precedence operator is present on both ways it will determine the order associativity from where to start. It is simple as to which goes first and which comes second.

Example - Operator Precedence (* and +)

if we take precedence between * and + the * has precedence over the + operator.

public class Test
{
    public static void main(String[] args)
    {
        int val1 = 10 , val2 = 20, val3, val4 = 10, val5;

        val5 = val2 + val1 * val4;
        System.out.println(val5);
    }
}

So from here, you may be wondering the output is going to be 300. But wrong, as we discussed java will give more importance to * first and performs the shared variable of * first. After that, it performs the + and thus bringing out the output of 120.

Output: 120

Operator Precedence And Associativity

Example: Operator Associativity

public class Test
{
    public static void main(String[] args)
    {
        int val1 = 10 , val2 = 20, val3, val4 = 10,val5;
    
        val5 = val2 + val1 * val4 / val2;
        System.out.println(val5);
    }
}

Output: 25

So, here based on the precedence and associativity of * and / which is from left to right. The first precedence is multiplication and then the division and then it adds up with val1.