query: What is the difference between IS -A relationship and HAS-A relationship in Java?
positive_passages.docid: 1099
positive_passages.text: Prefer composition over inheritance?
negative_passages.docid: 13934
negative_passages.text: Is there any difference between the `:key => "value"` and `key: "value"` hash notations?
negative_passages.docid: 121488
negative_passages.text: Why do we use "have" with does and not "has"?
negative_passages.docid: 91066
negative_passages.text: Difference between "a" and "any"
negative_passages.docid: 155516
negative_passages.text: Do I need to mention 'has' ( present perfect tense) twice when connecting the sentences with and?
negative_passages.docid: 27219
negative_passages.text: Is there any difference between type? and Nullable?
negative_passages.docid: 88087
negative_passages.text: Why does this say there is no join predicate?
negative_passages.docid: 16350
negative_passages.text: Grails - ORM join to show name vs id
negative_passages.docid: 130399
negative_passages.text: What is the difference between  and !=
negative_passages.docid: 61752
negative_passages.text: What's the difference between isset() and array_key_exists()?
negative_passages.docid: 102081
negative_passages.text: What is the difference between : and true?
negative_passages.docid: 37877
negative_passages.text: Do the *Result objects in Database have a common ancestor?
negative_passages.docid: 142941
negative_passages.text: What is the difference between Composition (@*) and sequential applications (@)?
negative_passages.docid: 32886
negative_passages.text: What is the difference between != and =! in Java?
negative_passages.docid: 89714
negative_passages.text: What is the difference between Nullable.HasValue or Nullable != null?
negative_passages.docid: 37071
negative_passages.text: SOQL: Comparing two custom relationship fields in a nested query
negative_passages.docid: 110074
negative_passages.text: What is the difference between == and equals() in Java?