package enumeration2;

public enum Op {
	ADD("+") { public int eval(int x, int y) { return x + y; } },
	SUB("-") { public int eval(int x, int y) { return x - y; } },
	MUL("*") { public int eval(int x, int y) { return x * y; } },
	DIV("/") { public int eval(int x, int y) { return x / y; } };

	private final String name;
	private Op(String name) { this.name = name; }

	public String toString() { return name; }
	public abstract int eval(int x, int y);
}