Can you find error

Question

can you find error from this program ..

https://code.sololearn.com/cD3p0uIPFmMq/?ref=app

Answer 1

Change:
int a;
to:
int a = 0;

and:
a=Integer.parseInt(in.readLine());
to:
try{
a=Integer.parseInt(in.readLine());
}
catch(IOException e){
// Error with readLine()
}
catch(NumberFormatException e){
// Wrong type of input
}

PS:
DataInputStream might not work on codeplayground.

Answer 2

DataInputStream doesn't work on code playground. Try something else like BufferedReader or Scanner.

Answer 3

Can you help me to correct on playground.. pls

Answer 4

I got same error in eclipse 🤔..