| Name | Description | Type | Package | Framework |
| Feature | A Feature corresponds to a single row in a GFF file. | Class | org.biojava.nbio.genome.parsers.gff | BioJava |
| FeatureHelper | Class | org.biojava.nbio.genome.parsers.gff | BioJava | |
| FeatureI | A feature on a sequence (for example, an exon or a gene), defined by a location and a set of attributes encoded as key/value pairs. | Interface | org.biojava.nbio.genome.parsers.gff | BioJava |
| FeatureList | A list of FeatureI objects implemented using a Java ArrayList; corresponds to a GFF file. | Class | org.biojava.nbio.genome.parsers.gff | BioJava |
| GCStats | Class | org.biojava.nbio.genome.parsers.gff | BioJava | |
| GeneIDGFF2Reader | http://www. | Class | org.biojava.nbio.genome.parsers.gff | BioJava |
| GeneMarkGTFReader | http://www. | Class | org.biojava.nbio.genome.parsers.gff | BioJava |
| GFF3Reader | http://www. | Class | org.biojava.nbio.genome.parsers.gff | BioJava |
| GFF3Writer | Class | org.biojava.nbio.genome.parsers.gff | BioJava | |
| Location | A location on a sequence. | Class | org.biojava.nbio.genome.parsers.gff | BioJava |
| LocIterator | Move a sliding window over a Location. | Class | org.biojava.nbio.genome.parsers.gff | BioJava |