Simple Integer Calculator class (Division deliberately wrong)

Calculator.java

public class Calculator{
  private int a, b;
	public Calculator(int a, int b){
		this.a = a;
		this.b = b;
	}

	public int addition(){
		return this.a + this.b;
	}

	public int subtraction(){
		return this.a - this.b;
	}

	public int multiplication(){
		return this.a * this.b;
	}

	public int division(){
		return (int)(this.a / this.b);
	}
}