Insert a number like 8662. It shows frequency of 6 two times.How to remove this?

Question

https://code.sololearn.com/cVN4j025iPpx/?ref=app

Answer 1

you have to remember which number you already printed.

for that you could use a array or a list and check if the number already occured

eg

int[] a = new int[10];

lets say the number is a 2 than you
check
if (a[2] == 0){
a[2] = 1;
//do stuff (your while loop for example)
}
//rest of code to skip the number

Answer 2

in your example:

//...
//start new code
int[] used = new int[10];
//end new code

while(e>0)
{
a=e%10;

//start new code
if(used[a] == 0){

used[a] = 1;

while(b>0)
{
c=b%10;
if(a==c)
d++;
b=b/10;
}
System.out.println("Frequency of "+a+" = "+d);
}
//end of new code

e=e/10;
b=n;
d=0;
}
//...

Answer 3

yeah,I was hoping to solve to solve it without using array but thanks for the advice mate!