RealSet

package realset;

/**
 *  Document   : RealSet
 *  Created on : 12/12/2014, 12:21:42
 *  Author     : talmid
 */
public class RealSet
{
    private double [] arr;

    public RealSet(){
        arr = new double[0];
    }
    public int size(){
        return arr.length;
    }
    public void insert(double num){
        boolean isThere = false;
        for (int i = 0; i <arr.length; i++){
            if(num == arr[i]){
                isThere = true;
                break;
            }
        }
        if (!isThere){
            double newarr[] = new double[arr.length+1];
            for (int i = 0; i< arr.length; i++){
                newarr[i] = arr[i];
            }
            newarr[arr.length] = num;
            arr = newarr;
        }
    }

    public void remove(double num){
        boolean isThere = false;
        int a = 0;
        for (int i = 0; i <arr.length; i++){
            if(num == arr[i]){
                a = i;
                isThere = true;
                break;
            }
        }
        if (isThere){
            while (a < arr.length-1){

                double tmp = arr[a];
                arr[a] = arr[a+1];
                arr[a+1] = tmp;

                a++;
            }
            double newarr[] = new double[arr.length-1];
            for(int i = 0; i< arr.length-1; i++){
             newarr[i] = arr[i];
            }
            arr = newarr;
        }
    }

    public double findBiggest(){
        double max = arr[0];
        for (int i = 1; i< arr.length; i++){
            if (arr[i]>max){
                max = arr[i];
            }
        }
        return max;
    }

    public double[] retar(){
        return arr;
    }
}