Here are a few review problems.

Problem $1.)$

$($a$)$ A student wants to read integers from a buffered stream and writes thd following code. What is wrong?

BufferedInputStream bis $=$ new BufferedInputStream$($

new DataInputStream$($

new FileInputStream$($

new File$("$input$.$txt$"))))$;

$($b$)$ A student wants to read integers from a buffered stream and writes the following code. What is wrong?

$)))$

$((($ new File$(input.txt)$