How to read until end of file EOF using BufferedReader in Java

Question

I have problem with reading the input until EOF in Java  In here  there are single input and the output consider the input each line   Example   input   1 2 3 4 5   output   0  1 0 1 0   But  I have coded using Java  the single output will printed when I was entering two numbers  I want single input and print single output each line  terminate EOF  using BufferedReader in Java   This is my code   BufferedReader input   new BufferedReader new InputStreamReader System in    StringBuffer pr   new StringBuffer       String str       while  str input readLine     null  amp  amp  str length    0        BigInteger n   new BigInteger input readLine

User · Answer

With text files  maybe the EOF is -1 when using BufferReader read    char by char  I made a test with BufferReader readLine    null and it worked properly

User · Answer

You are consuming a line at  which is discarded  while  str input readLine     null  amp  amp  str length    0    and reading a bigint at  BigInteger n   new BigInteger input readLine       so try getting the bigint from string which is read as  BigInteger n   new BigInteger str       Constructor used  BigInteger String val    Aslo change while  str input readLine     null  amp  amp  str length    0  to  while  str input readLine     null    see related post string to bigint  readLine   Returns      A String containing the contents of the line  not including any line-termination characters  or null if the end of the stream has been reached    see javadocs

[java] How to read until end of file (EOF) using BufferedReader in Java?

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