/**
 Sample Answer for 11S E01 Exam.
 Note lack of javadoc comments---those were not required on the exam.
*/

public class RadioStation {

    private String callSign = "KCSB"; // b
    private double freq = 99.9; // b

    public RadioStation() {} ; // c
    public RadioStation(String callSign, double freq) { //d
	this.callSign = callSign;
	this.freq = freq;
    }

    public String getCallSign() { return callSign; } //e
    public double getFrequency() { return freq; } //e
    
    public boolean isFM() {
	return this.freq <= 108.0;
    }

    public String toString() {
	return "[" + this.callSign + ", " 
	    + (this.isFM() ? "FM " : "AM ")
	    + this.freq
	    + "]";
    }


    public static void main(String [] args) { // h 
	RadioStation KJEE = new RadioStation("KJEE",92.9);
	RadioStation KCSB = new RadioStation();
	System.out.println(KJEE);	
    }



	    // not part of answer to q1
	    // code for q2

    public boolean  equals(Object o) { 
	double tol = 0.01; 
	if (! (o instanceof RadioStation) )
	    return false;
	RadioStation other = (RadioStation) o;
	return (other.getCallSign().equals(this.getCallSign()) &
		Math.abs(other.getFrequency() - this.getFrequency()) < tol );
	    }
}