A Study of JNJ-79635322 in Combination With Daratumumab With or Without Lenalidomide or in Combination With Pomalidomide for Multiple Myeloma

The primary purpose of this study for Part 1 (Dose Escalation) is to identify the safe effective dose (recommended Phase 2 doses \[RP2Ds\]) and schedule for JNJ-79635322 treatment regimen in combination with daratumumab with or without lenalidomide or with pomalidomide; and for Part 2 (Dose Expansion) is to further characterize the safety and tolerability of JNJ-79635322 combination treatment regimens at selected RP2D(s).

Inclusion Criteria: * Have documented initial diagnosis of multiple myeloma according to IMWG diagnostic criteria * Meet treatment regimen-specific requirements as follows: Treatment regimen A (JNJ-79635322+daratumumab):Treatment regimens A1 and A3: Have been treated with 1 to 3 prior lines of therapy, including a proteasome inhibitor (PI) and an inhibitor, immunomodulatory drug (IMiD) therapy for the treatment of multiple myeloma (MM); Treatment regimens A2 and A4: Newly diagnosed MM naïve to multiple myeloma (or other related plasma cell neoplasm)-directed treatments; Treatment regimen B (JNJ-79635322+pomalidomide): Have received greater than or equal to (\>=) 1 prior line of therapy, including a PI and lenalidomide, and are lenalidomide refractory OR \>=2 prior lines of therapy, including a PI and lenalidomide; Treatment Regimens C, D, and E: Newly diagnosed MM naïve to multiple myeloma (or other related plasma cell neoplasm)-directed treatments * Have a weight \>=40 kilograms * Must have an Eastern Cooperative Oncology Group status of 0 or 2 * Have measurable disease at screening as defined by at least 1 of the following: a) Serum monoclonal protein (M-protein) level \>= 0.5 gram per deciliter (g/dL); or b) Urine M-protein level \>=200 milligram (mg)/24 hours; or c) Light chain multiple myeloma: Serum immunoglobulin (Ig) free light chain (FLC) \>= 10 mg/dL and abnormal serum Ig kappa lambda FLC ratio. d) For participants without measurable disease in the serum, urine, or involved FLC: presence of 1 or more focus of extramedullary disease which meets the following criteria: extramedullary plasmacytoma not contiguous with a bone lesion, at least 1 lesion \>=2 centimeter (cm) (at its greatest dimension) diameter on whole body positron emission tomography-computed tomography (or whole-body magnetic resonance imaging approved by sponsor), and not previously radiated Exclusion Criteria: * Any serious underlying medical conditions, such as: a) Evidence of active viral, bacterial, or systemic fungal infection requiring ongoing antiviral, antibacterial, or antifungal treatment. b) Active autoimmune disease requiring systemic immunosuppressive therapy within 6 months before start of study treatment. c) Cardiac conditions (myocardial infarction, unstable angina, or coronary artery bypass graft \