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C:\ass3>javac SmallFS.java
SmallFS.java:87: cannot find symbol
symbol  : variable gblk
location: class SmallFS
                gblk = dsched.readBlock(BM.read_uint(sblk, 16));
                ^
SmallFS.java:87: cannot find symbol
symbol  : method read_uint(byte[],int)
location: class BM
                gblk = dsched.readBlock(BM.read_uint(sblk, 16));
                                          ^
SmallFS.java:93: cannot find symbol
symbol  : variable map
location: class SmallFS
                        map = read_ubits(gblk,i,2);
                        ^
SmallFS.java:93: cannot find symbol
symbol  : variable gblk
location: class SmallFS
                        map = read_ubits(gblk,i,2);
                                         ^
SmallFS.java:94: cannot find symbol
symbol  : variable map
location: class SmallFS
                        switch(map)
                               ^
SmallFS.java:112: cannot find symbol
symbol  : variable invalid
location: class SmallFS
                System.out.println("Block summary:" +unused+ "unused, " +reserve
d+ "reserved," +used+ "used," +invalid+ "invalid");

                               ^
6 errors