Phase 4 — Java Advanced¶
Topics in this phase are Java-specific — not on LeetCode, but essential in real-world work.
| # | Topic | Status |
|---|---|---|
| 14 | OOP | ⬜ |
| 15 | Collections Framework | ⬜ |
| 16 | Stream API & Lambda | ⬜ |
| 17 | Exception & DateTime | ⬜ |
| 18 | Concurrency | ⬜ |
Topics in this phase are Java-specific — not on LeetCode, but essential in real-world work.
| # | Topic | Status |
|---|---|---|
| 14 | OOP | ⬜ |
| 15 | Collections Framework | ⬜ |
| 16 | Stream API & Lambda | ⬜ |
| 17 | Exception & DateTime | ⬜ |
| 18 | Concurrency | ⬜ |