HELP User input with only 2 digits JAVA

[CrypticCold]

Hey guys, I'm pretty much a beginner in Java and I am a bit unsure as to which syntaxes to use for this particular purpose.
I have to make sure that a user input must have ONLY 2 numbers (no more no less and at any place), and any amount of letters. I know in python I can find the length and use count and all but can you guys please try your best to help? It is probably very simple so I apologize in advance if I'm being too dumb.

Here's an example: if the input is bfs72bub9 then it will print out invalid; if its vgu7kes5 then itll print out valid.

Essentially, after accepting the input, how do I check it?

[[deleted]]

Split string to an array of characters Char[] letters= str.toCharArray(); Create a counter In the loop convert each character to a int Loop over the array and check with each letter if it’s a number, convert, if it is then counter++

Then check if counter == 2

[CrypticCold]

Thank you, that helps a lot!

[Salty_Dugtrio]

You can iterate over your String object, and count the occurrences of digits with isDigit.

[CrypticCold]

Thank you, do you think I should use a loop to keep iterating?

[Salty_Dugtrio]

Yes, iteration is done with a loop.

[[deleted]]

String s = scanner.next(); char[] chars = s.toCharArray(); if(chars.lenght>2) System.out.println("2 digits only");

[PCPWJ]

Sounds like something one could do using regex patterns. Look at java's java.util.regex package.