mycomparator.java

基本的数据结构的java代码

import java.util.Comparator;
public class MyComparator implements Comparator{
	public int compare(Object o1, Object o2) {
	
		if((o1 instanceof Integer)&&(o2 instanceof Integer)){
			Integer co1=(Integer)o1;
			Integer co2=(Integer)o2;
			int i1=co1.intValue();
			int i2=co2.intValue();
			if(i1<=i2) return -1;
		    else return 1;
			
		}
		else{
			return 0;		
		}		
	
	}
	
    public boolean equals(Object obj){
    	return false;
    }
	 
}