Number of occurences of characters in a string

import java.util.Scanner;
class RepeatCha
{
public static void main(String arg[])
{
System.out.println("enter string :");
Scanner sc=new Scanner(System.in);
String str=sc.nextLine();
char[] c=str.toCharArray();
int loopcount=0;
int count=0;

for(int i=0;i<c.length;i++)
{
//System.out.println(c[i]+" "+i);
boolean flag=true;
for(int k=0;k<i;k++){
if(c[i]==(str.charAt(k)))
flag=false;
}
if(flag){
for(int j=0;j<str.length();j++)
{
if(c[i]==str.charAt(j))
count=count+1;
}
System.out.println(c[i]+" : "+" "+(count));
count=0;
loopcount++;
}
}
}
}
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Output :  
enter string :
sarfraz
s :  1
a :  2
r :  2
f :  1
z :  1