Java Program to print number of Occurrence of characters in the String. Example if string is aabbccdddaa Output shown will be a2b2c2d3a3.

import java.util.*;
public class OccuranceString {
 
 public static void main(String args[])
 {
  String s,s1="";
  int i,j,temp=0,count=0,len;
  Scanner in=new Scanner(System.in);
  System.out.print("Enter the String: ");
  s=in.next();
  len=s.length();
  
  while(temp!=len)
  {
   count=0;
   for(j=temp;j<len;j++)
   {
    if(s.charAt(temp)==s.charAt(j))
    {
     count++;
    }
    else
    {
     break;
    }
   }
   s1=s1+s.charAt(temp)+""+count+" ";
   temp=j;
  }
  
  System.out.println(s1);
 
  
  
  
 }