Attribute combinations - A snippet to display the combinations of attributes

ReadMe.txt

A small JAVA program to print out the combinatrics of attributes. 
I got this problem statement during one of my job interviews. Couldnt solve it during the interview.

Usage : 

1. Start the program with no arguments -
                javac Attributes.java
                java Attributes

2. "No. of attributes" - Total number of attributes (each attribute contains multiple elements (Ex: small medium large xLarge)  is one Attribute)                

3. Based on previous input number of attributes will be asked(each element in the attribute should be sepearted with a white space)

Example:
Input:
[ved@mypc]$ javac Attributes.java
[ved@mypc]$ java Attributes
No. of attributes
3
Enter 1 Atrribute values
small medium large
Enter 2 Atrribute values
red green blue
Enter 3 Atrribute values
men women

Output : 
small red men
small red women
small green men
small green women
small blue men
small blue women
medium red men
medium red women
medium green men
medium green women
medium blue men
medium blue women
large red men
large red women
large green men
large green women
large blue men
large blue women

Attributes.java

import java.util.Scanner;

public class Attributes{
	public static void main(String [] args){
		Scanner scanIN = new Scanner(System.in);
		Scanner scanSTR = new Scanner(System.in);
		String [] temp;
    String str;
		System.out.println("No. of attributes");
		int numAtr = scanIN.nextInt();
		String [][] mainArray = new String[numAtr][];
		for(int i=0;i<numAtr;i++){
			System.out.println("Enter "+(i+1)+" Atrribute values");
			str = scanSTR.nextLine();
			temp = str.split(" ");
			mainArray[i]=new String[temp.length];		
			for(int j=0;j<temp.length;j++){
				mainArray[i][j] = temp[j];
			}
		}
		scanIN.close();
		scanSTR.close();
		int [] status = new int[numAtr];
		int index=0,attrStat;
		boolean isDone = false;
		if(numAtr == 1){
			for(int i=0;i<mainArray[0].length;i++){
				System.out.println(mainArray[0][i]);
			}
		}else{
			while(!isDone){
				if(index == (numAtr-1)){
					System.out.println(mainArray[index][status[index]]);
					if(status[index] == (mainArray[index].length-1)){
						for(int i=0;i<index;i++){
							attrStat = 1;
							for(int j=i+1;j<index;j++){
								if(status[j] != (mainArray[j].length-1)){
									attrStat = 0;
									break;
								}
							}
							if(attrStat == 1){
								if(status[i] == (mainArray[i].length-1)){
									if(i == 0){
										isDone = true;
									}else{
										status[i]=0;
									}
								}else{
									status[i]++;
								}
							}
						}
						status[index] = 0;
					}else{ 	
						status[index]++;
					}
					index = 0;
				}else{
					System.out.print(mainArray[index][status[index]]+" ");
					index++;
				}
			}
		}
	}
}