Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Find the uncommon values concatenated from both the strings in Java
To find the uncommon values concatenated from both the strings in Java, the code is as follows −
Example
import java.util.*;
import java.lang.*;
import java.io.*;
public class Demo{
public static String concat_str(String str_1, String str_2){
String result = "";
int i;
HashMap<Character, Integer> my_map = new HashMap<Character, Integer>();
for (i = 0; i < str_2.length(); i++)
my_map.put(str_2.charAt(i), 1);
for (i = 0; i < str_1.length(); i++)
if (!my_map.containsKey(str_1.charAt(i)))
result += str_1.charAt(i);
else
my_map.put(str_1.charAt(i), 2);
for (i = 0; i < str_2.length(); i++)
if (my_map.get(str_2.charAt(i)) == 1)
result += str_2.charAt(i);
return result;
}
public static void main(String[] args){
String my_str_1 = "ABMCD";
String my_str_2 = "MNCPQR";
System.out.println("The uncommon values concatenated from both strings is : ");
System.out.println(concat_str(my_str_1, my_str_2));
}
}Output
The uncommon values concatenated from both strings is : ABDNPQR
A class named Demo contains a function anmed ‘concat_str’ which takes in two strings as parameters. The function creates a new HashMap instance, and iterates over the map, and places elements into it for both the strings.
The two strings are compared by iterating over them, and if the characters are same, then the iterator just increments, otherwise, both the elements are put into another string named ‘result’. This string is returned as output. In the main function, two strings are defined and the ‘concat_str’ function is called on these two strings. The output is displayed on the console.
Updated on: 08-Jul-2020
96 Views
Advertisements