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Thread: please tell me the code of union and intersection of two arrays without using collections

  1. #1
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    Default please tell me the code of union and intersection of two arrays without using collections

    I have searched on internet but did not find something useful. I do not want to use collections. please help me out!
    here's what i have written
    class ArrayDemo3
    {
    	static void union(int x[], int y[])
    	{
    		System.out.println("Union Elements:");
    		for(int i=0; i<x.length; i++)
    		{
    			for(int j=0; j<y.length; j++)
    			{
    				if(x[i]!=y[j])
    				System.out.println(x[i]);
    				//else 
     
    			}
    		}
    	}
    	static void intersection(int x[],int y[])
    	{
    		System.out.println("Intersection Elements:");
    		for(int i=0; i<x.length; i++)
    		{
    			for(int j=0; j<y.length; j++)
    			{
    				if(x[i]==y[j])
    				System.out.println(x[i]);
    			}
    		}
    	}
     
    	public static void main(String... kl)
    	{
    		int p[]={2,5,7,8,5,1};
    		int q[]={5,8,2,0,1,6,3};
    		union(p,q);
    		intersection(p,q);
    	}
    }


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: please tell me the code of union and intersection of two arrays without using collections

    Before writing any code you need to decide what steps the code should take to do the job.
    Do you have a list of the steps the code needs to do?
    For union?
    For intersection?
    If you don't understand my answer, don't ignore it, ask a question.

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