Reading From RandomAccessFile

Question

I am reading 10 lines from a simple RandomAccessFile and printing each line. The exact lines in the text file are as follows one after the other:

blue

green

bubble

cheese

bagel

zipper

candy

whale

monkey

chart

When printing them in order as I read line by line my output is this:

green

cheese

zipper

whale

chart

I cannot understand why my method is skipping every other line in the file. Am I misunderstanding how a RandomAccessFile works? My method is below:

RandomAccessFile file = new RandomAccessFile(FILEPATH, "rw");
    read(file);

public static void read(RandomAccessFile t) throws IOException{
    while (t.readLine()!=null) {
        System.out.println(t.readLine());
    }
}

Answer 1

You are calling readLine() twice

while (t.readLine()!=null) {
    System.out.println(t.readLine());
}

Instead precompute the readLine();

String tmp;
while((tmp = t.readLine()) != null) {
    System.out.println(tmp);
}