Finding an element array with certain different value in string array java

Question

I have string array like this:

String[] s={"0010", "0110", "1010", "1110", "0001", "0011"}

I need to get each pairs of elements which changed inside array. In this case, only one element out of 4 gets changed for every string.

For the example: for 0010, as the first position(0) change to 1 on 1010, I need to print out

{"0010","1010"}

for 0001, as the third position(0) change to 1 on 0011, I need to print out

{"0001", "0011"}

and so on. Is there any way in java to get this result and how? Is this same to get string inside string array?

Are those supposed to be Strings? As posted, your code line doesn't compile. Also, can you elaborate a bit, maybe show us what you have tried yourself? — Keppil
– Keppil, Commented Feb 24, 2015 at 11:38
That's not valid code to start with - 0010 isn't a string... It really helps if you provide a short but complete program which actually demonstrates the problem, rather than just describing it. — Jon Skeet
– Jon Skeet, Commented Feb 24, 2015 at 11:38
String[] s={"0010", "0110","1010","1110"," 0001"," 0011"} . I think this is the valid String Array — Neeraj Jain
– Neeraj Jain, Commented Feb 24, 2015 at 11:43
is this like only one element out of 4 gets changed ? please explain the precise defination for a set here. — anurag gupta
– anurag gupta, Commented Feb 24, 2015 at 11:53

anurag gupta · Accepted Answer · 2015-02-24 12:53:10Z

2

public class Test {
public static void main(String args[])
{
    String[] s={"0010", "0110", "1010", "1110", "0001", "0011"};
    for(int i=0;i<s.length;i++)
    {
        for(int j=i+1;j<s.length;j++)
        {
            if(isPair(s[i].toCharArray(), s[j].toCharArray()))
            {
                System.out.println("{\""+s[i] + "\",\"" + s[j]+"\"}");
            }
        }
    }
}
public static boolean isPair(char[] a, char[] b)
{
    int count = 0;
    if(a.length == b.length)
    {
        for(int i=0;i<a.length;i++)
        {
            if(a[i]!=b[i])
                count++;
        }
    }
    return count == 1 ? true : false;
}
}

answered Feb 24, 2015 at 12:53

anurag gupta

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1 Comment

user3698011 Over a year ago

Wow, it works! So I need to compare like this, I see. Thank you @anurag gupta

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