CS计算机代考程序代写 /**

/**
* Utilities: A simple object Pair.
*
* @author Scott Sanner (ssanner@gmail.com)
* @version 9/1/03
*
**/

package util;

public class Pair implements Comparable {

public K1 _o1;
public K2 _o2;

public Pair(K1 o1, K2 o2) {
_o1 = o1;
_o2 = o2;
}

public int hashCode() {
return _o1.hashCode() – _o2.hashCode();
}

public boolean equals(Object o) {
if (o instanceof Pair) {
Pair p = (Pair) o;
return (_o1.equals(p._o1) && _o2.equals(p._o2));
} else {
return false;
}
}

// Perform an ordered comparison, o1’s then o2’s if o1’s are equal
public int compareTo(Object o) {

Pair p = (Pair) o;
Comparable c1 = (Comparable) _o1;
Comparable p_c1 = (Comparable) p._o1;
int comp_o1 = c1.compareTo(p_c1);
if (comp_o1 != 0) {
return comp_o1;
}

Comparable c2 = (Comparable) _o2;
Comparable p_c2 = (Comparable) p._o2;
return c2.compareTo(p_c2);
}

public String toString() {
return “<" + _o1.toString() + ", " + _o2.toString() + ">“;
}
}