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));
}
}









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















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









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.











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.









share|improve this question




share|improve this question








edited 18 mins ago









Jamal

30.3k11116226




30.3k11116226






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.









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










0






active

oldest

votes











Your Answer





StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["\$", "\$"]]);
});
});
}, "mathjax-editing");

StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "196"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});






noredlac is a new contributor. Be nice, and check out our Code of Conduct.










draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fcodereview.stackexchange.com%2fquestions%2f211342%2ffinding-different-char-from-2-given-strings%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes








noredlac is a new contributor. Be nice, and check out our Code of Conduct.










draft saved

draft discarded


















noredlac is a new contributor. Be nice, and check out our Code of Conduct.













noredlac is a new contributor. Be nice, and check out our Code of Conduct.












noredlac is a new contributor. Be nice, and check out our Code of Conduct.
















Thanks for contributing an answer to Code Review Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


Use MathJax to format equations. MathJax reference.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fcodereview.stackexchange.com%2fquestions%2f211342%2ffinding-different-char-from-2-given-strings%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

404 Error Contact Form 7 ajax form submitting

How to know if a Active Directory user can login interactively

Refactoring coordinates for Minecraft Pi buildings written in Python