Concatinating Two Strings without Using concat() method of java string class

Hi Guys,


It's very simple

step1:convert your string to a character array

step2:Create an ArrayList add each string to this list and finally return list.

Program:

package logics;

import java.util.ArrayList;
import java.util.Iterator;

public class concatDemo {
 public static void main(String []args)
 {
     String s1="shashi kumar";
     String s2="shankar";
     char name1[]=s1.toCharArray();
     char name2[]=s2.toCharArray();
     concatination(name1,name2);
   
   
 }
 public static void concatination(char[] name,char[] name1)
 {
     ArrayList<Character> list=new ArrayList<Character>();
     for(char s:name)
     {
         list.add(s);
     }
     for(char s:name1)
     {
         list.add(s);
     }
     Iterator<Character > i=list.iterator();
     while(i.hasNext())
     {
         System.out.print(i.next());
     }
 }

}

output:
--------------------------------
shashi kumarshankar