Finding different char from 2 given strings












0















I believe I have the code right for this particular question already but I do have some follow up questions. I'm still fairly new to this and I got it to spit out what I was looking for. If there are room for improvements I am open to criticisms. I'm just looking to get better.



How would I approach this differently or how would I solve it if the 2 given Strings are VERY large and the memory is limited?



import java.util.ArrayList;

public class DifferChar {

public char diffChar(String str1, String str2)
{
ArrayList<Character> al1 = new ArrayList<Character>();
ArrayList<Character> al2 = new ArrayList<Character>();
String longer;
String shorter;
char c = 'u0000';

if (str1 != null && str2 != null)
{
if (str1.length() > str2.length())
{
longer = str1.toUpperCase();
shorter = str2.toUpperCase();
}
else
{
longer = str2.toUpperCase();
shorter = str1.toUpperCase();
}

if (longer.length() - shorter.length() <= 1)
{
for (char ch : shorter.toCharArray())
al1.add(ch);
for (char ch : longer.toCharArray())
al2.add(ch);
for (int i = al1.size()-1; i >= 0; i--)
{
if (al2.contains(al1.get(i)))
al2.remove(al1.get(i));
}
if (al2.size() == 1)
c = al2.get(0);
}
}
return c;
}

public static void main(String args)
{
String str1 = "aklwejr";
String str2 = "aklwej";

DifferChar diff = new DifferChar();
System.out.println(diff.diffChar(str1, str2));
}
}









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  • 1





    Could you clarify exactly what the requirements of the task are?

    – 200_success
    17 mins ago
















0















I believe I have the code right for this particular question already but I do have some follow up questions. I'm still fairly new to this and I got it to spit out what I was looking for. If there are room for improvements I am open to criticisms. I'm just looking to get better.



How would I approach this differently or how would I solve it if the 2 given Strings are VERY large and the memory is limited?



import java.util.ArrayList;

public class DifferChar {

public char diffChar(String str1, String str2)
{
ArrayList<Character> al1 = new ArrayList<Character>();
ArrayList<Character> al2 = new ArrayList<Character>();
String longer;
String shorter;
char c = 'u0000';

if (str1 != null && str2 != null)
{
if (str1.length() > str2.length())
{
longer = str1.toUpperCase();
shorter = str2.toUpperCase();
}
else
{
longer = str2.toUpperCase();
shorter = str1.toUpperCase();
}

if (longer.length() - shorter.length() <= 1)
{
for (char ch : shorter.toCharArray())
al1.add(ch);
for (char ch : longer.toCharArray())
al2.add(ch);
for (int i = al1.size()-1; i >= 0; i--)
{
if (al2.contains(al1.get(i)))
al2.remove(al1.get(i));
}
if (al2.size() == 1)
c = al2.get(0);
}
}
return c;
}

public static void main(String args)
{
String str1 = "aklwejr";
String str2 = "aklwej";

DifferChar diff = new DifferChar();
System.out.println(diff.diffChar(str1, str2));
}
}









share|improve this question









New contributor




noredlac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
















  • 1





    Could you clarify exactly what the requirements of the task are?

    – 200_success
    17 mins ago














0












0








0








I believe I have the code right for this particular question already but I do have some follow up questions. I'm still fairly new to this and I got it to spit out what I was looking for. If there are room for improvements I am open to criticisms. I'm just looking to get better.



How would I approach this differently or how would I solve it if the 2 given Strings are VERY large and the memory is limited?



import java.util.ArrayList;

public class DifferChar {

public char diffChar(String str1, String str2)
{
ArrayList<Character> al1 = new ArrayList<Character>();
ArrayList<Character> al2 = new ArrayList<Character>();
String longer;
String shorter;
char c = 'u0000';

if (str1 != null && str2 != null)
{
if (str1.length() > str2.length())
{
longer = str1.toUpperCase();
shorter = str2.toUpperCase();
}
else
{
longer = str2.toUpperCase();
shorter = str1.toUpperCase();
}

if (longer.length() - shorter.length() <= 1)
{
for (char ch : shorter.toCharArray())
al1.add(ch);
for (char ch : longer.toCharArray())
al2.add(ch);
for (int i = al1.size()-1; i >= 0; i--)
{
if (al2.contains(al1.get(i)))
al2.remove(al1.get(i));
}
if (al2.size() == 1)
c = al2.get(0);
}
}
return c;
}

public static void main(String args)
{
String str1 = "aklwejr";
String str2 = "aklwej";

DifferChar diff = new DifferChar();
System.out.println(diff.diffChar(str1, str2));
}
}









share|improve this question









New contributor




noredlac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












I believe I have the code right for this particular question already but I do have some follow up questions. I'm still fairly new to this and I got it to spit out what I was looking for. If there are room for improvements I am open to criticisms. I'm just looking to get better.



How would I approach this differently or how would I solve it if the 2 given Strings are VERY large and the memory is limited?



import java.util.ArrayList;

public class DifferChar {

public char diffChar(String str1, String str2)
{
ArrayList<Character> al1 = new ArrayList<Character>();
ArrayList<Character> al2 = new ArrayList<Character>();
String longer;
String shorter;
char c = 'u0000';

if (str1 != null && str2 != null)
{
if (str1.length() > str2.length())
{
longer = str1.toUpperCase();
shorter = str2.toUpperCase();
}
else
{
longer = str2.toUpperCase();
shorter = str1.toUpperCase();
}

if (longer.length() - shorter.length() <= 1)
{
for (char ch : shorter.toCharArray())
al1.add(ch);
for (char ch : longer.toCharArray())
al2.add(ch);
for (int i = al1.size()-1; i >= 0; i--)
{
if (al2.contains(al1.get(i)))
al2.remove(al1.get(i));
}
if (al2.size() == 1)
c = al2.get(0);
}
}
return c;
}

public static void main(String args)
{
String str1 = "aklwejr";
String str2 = "aklwej";

DifferChar diff = new DifferChar();
System.out.println(diff.diffChar(str1, str2));
}
}






java






share|improve this question









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noredlac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









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noredlac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




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edited 18 mins ago









Jamal

30.3k11116226




30.3k11116226






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noredlac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 26 mins ago









noredlacnoredlac

1




1




New contributor




noredlac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





noredlac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






noredlac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.








  • 1





    Could you clarify exactly what the requirements of the task are?

    – 200_success
    17 mins ago














  • 1





    Could you clarify exactly what the requirements of the task are?

    – 200_success
    17 mins ago








1




1





Could you clarify exactly what the requirements of the task are?

– 200_success
17 mins ago





Could you clarify exactly what the requirements of the task are?

– 200_success
17 mins ago










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