What does the pipe character do in a Java method call?

Question

I've seen the pipe character used in method calls in Java programs.

For example:

public class Testing1 {

    public int print(int i1, int i2){
        return i1 + i2; 
    }
    public static void main(String[] args){
        Testing1 t1 = new Testing1();
        int t3 = t1.print(4, 3 | 2);
        System.out.println(t3);
    }
}

When I run this, I simply get 7.

Can someone explain what the pipe does in the method call and how to use it properly?

Answer 1

The pipe in 3 | 2 is the bitwise inclusive OR operator, which returns 3 in your case (11 | 10 == 11 in binary).