The operator taking two operands is called binary operators.
There are different binary operators are as follows :

The Arithmetic Operators:

The Java programming language provides operators that perform addition, subtraction, multiplication, and division. There's a good chance you'll recognize them by their counterparts in basic mathematics.

The only symbol that might look new to you is "%", which divides one operand by another and returns the remainder as its result.

+   // addition operator (also used for String concatenation)
-   // subtraction operator
*   // multiplication operator
/   // division operator
%   //remainder operator

class ArithmeticDemo
{
  public static void main (String args[ ])
  {
	  int x=15,y=4,z;
	  z=x%y;
	  System.out.println("z="+z);
  }
}

Output

z=3

The + operator can also be used for concatenating (joining) two strings together, as shown in the following program:

class ConcatDemo
{
	public static void main(String args[ ])
	{
		String s1 = "Java";
		String s2 = " Race";
		String s3=s1+s2;
		System.out.println("s3="+s3);
	}
}

Output:

s3=JavaRace