How to do bool Queries in ElasticSearch with Java Api?

Is this one?

private static QueryBuilder getQueryBuilder() {    //condition    MatchQueryBuilder A = QueryBuilders.matchQuery("content", "A");    MatchQueryBuilder B = QueryBuilders.matchQuery("content", "B");    MatchQueryBuilder C = QueryBuilders.matchQuery("content", "C");    MatchQueryBuilder D = QueryBuilders.matchQuery("content", "D");    MatchQueryBuilder E = QueryBuilders.matchQuery("content", "E");    MatchQueryBuilder F = QueryBuilders.matchQuery("content", "F");    MatchQueryBuilder G = QueryBuilders.matchQuery("name", "Robin");    //Maybe you should use TermQuery    //TermQueryBuilder G = QueryBuilders.termQuery("name", "Robin");    //1.(A AND B AND C)    BoolQueryBuilder query1 = QueryBuilders.boolQuery();    query1.must(A).must(B).must(C);    //2.(D OR E OR F)    BoolQueryBuilder query2 = QueryBuilders.boolQuery();    query2.should(D).should(E).should(F);    //3.Last    BoolQueryBuilder lastQuery = QueryBuilders.boolQuery();    lastQuery.must(query1).must(query2).must(G);        //use filter    BoolQueryBuilder filterBuiler = QueryBuilders.boolQuery().filter(lastQuery);    return filterBuiler;}