Questions of Java asked in interview

What are the differences between HashSet and TreeSet in Java?

[{"selector":"#anim-8278999a-005e-4fed-bdb2-987e1221777f","keyframes":{"transform":["translate3d(100.28249%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-7863afe4-26da-4a6a-8113-0ec64bffbd96","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-4b2284b3-40a0-4379-8634-4fa86e66965d","keyframes":{"transform":["translate3d(-102.8133%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f4a8ff93-4f88-46f7-a2ce-5462c8d4009d","keyframes":{"opacity":[0,1]},"delay":2000,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-c4ae9ed0-1530-493e-bd76-d690f5755aac","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-40bc8135-72f2-4e6f-b2ce-d626fc75fcc8","keyframes":{"transform":["translate3d(-116.10169%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-9cc8ec51-bea5-47e0-b951-9fd5c2dcc97e","keyframes":{"opacity":[0,1]},"delay":2000,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7fc10b56-d8bf-4606-ae8d-5957b84285dd","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-d4c91839-781b-4dbd-adc9-9deda2420e07 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.249999886225726%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}]

Explain the concept of Generics in Java with an example.

[{"selector":"#anim-b1e9be6e-cb65-4803-8cab-5a4008b6b6b1 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-34.178593556765456%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}] [{"selector":"#anim-7d5d37c1-c14a-45ef-b30d-6a6e304604a6","keyframes":{"transform":["translate3d(108.19210%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-f2c7fd0f-c4d7-4b91-9c61-fe261cd9cc0a","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-78b95fe7-0242-4bbb-8f7e-ea540f1ac510","keyframes":{"transform":["translate3d(-102.8133%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-169f4911-7134-49d9-ab27-7689bdf9a4dd","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-2d7cec05-056f-4b04-8dac-c3d721b73c00","keyframes":{"transform":["translate3d(-110.45197%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-8fdc6d4b-d5ce-46d6-ac03-7aaa879a34fa","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]

What is the difference between method overloading and method overriding in Java?

[{"selector":"#anim-72f6c308-4072-4013-9539-289e036d8985 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.249999886225726%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}] [{"selector":"#anim-344867a8-342a-4286-955a-32496c5d70e1","keyframes":{"transform":["translate3d(108.19210%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-cc9dd131-8b8b-4bff-a0df-3f130f36525c","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-ef4a191c-a2be-4e17-8eb9-3bf38c39d860","keyframes":{"transform":["translate3d(-102.8133%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-89aa26ac-3318-40ea-bd4a-ef5bb8dddd87","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-3b32742f-5ee7-4ef2-9623-a04ee17a912f","keyframes":{"transform":["translate3d(-110.45197%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-6f5ee5ea-0ddc-4e69-9cfc-87233e36e65e","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] Learn more

How does garbage collection work in Java?

[{"selector":"#anim-d0aa00ec-a19e-40f0-8db4-df9690ae56c6 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.249999886225726%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}] [{"selector":"#anim-2c67e0b7-46d1-417c-a8de-21dfa5c11fa5","keyframes":{"transform":["translate3d(108.19210%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-aca692cb-e593-4191-9fad-bf540179bb72","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-a1bdc380-c44f-406b-b227-21379abcf0a7","keyframes":{"transform":["translate3d(-102.55754%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-ed851528-eb8b-4f31-994b-1e61d7ac71c1","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-a03d30f3-c35e-487d-b08f-fea1c96cab21","keyframes":{"transform":["translate3d(-110.45197%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-2eb712bc-97da-4de8-a91c-61d6a780903a","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]

Describe the principles of SOLID design in Java.

[{"selector":"#anim-64ca36cb-4da8-460f-9a85-86a385058f40 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-14.839606445457761%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}] [{"selector":"#anim-0359d714-793b-42d0-ab18-55093c90884f","keyframes":{"transform":["translate3d(108.19210%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-44370000-f71f-4a60-887c-de95d5f8fdf0","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-ea6bda87-500c-4f92-a6f5-d68b7a4f2d0d","keyframes":{"transform":["translate3d(-102.55754%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-58912729-446f-499d-b74a-3da25c836e89","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-0f328e51-277a-4629-a48b-b79967376d32","keyframes":{"transform":["translate3d(-107.62712%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-38d96880-5aae-4ff9-90cf-05da0c415fc3","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]

What are lambda expressions in Java?

[{"selector":"#anim-899badbd-8ca7-47fc-8a45-8c1e0365fa19 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-27.904249314047462%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}] [{"selector":"#anim-acd6a3be-4e86-4c7f-9429-a57fb45f2758","keyframes":{"transform":["translate3d(108.19210%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-268b28c9-6c0c-478e-b275-f21a51a21084","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-cd826351-4292-44c2-bc52-dc19aca43860","keyframes":{"transform":["translate3d(-102.8133%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-d8b2d964-97c9-49e3-a248-50e5d17b3c8b","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-a0cb4479-8edb-46e8-b89d-90491094a119","keyframes":{"transform":["translate3d(-110.73446%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-ed297d52-5cfc-4fc9-98e1-c74e5be95053","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]

Explain the concept of multithreading and synchronization in Java.

[{"selector":"#anim-c0a7057d-93e5-4ba3-b014-bc0d254a539d [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-7.806472097164625%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}] [{"selector":"#anim-c623675c-9113-4a76-9ee5-47ef1a7186e9","keyframes":{"transform":["translate3d(108.19210%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-0e3b7958-ca48-4c74-8249-4038fad9e9c8","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-11c707ac-1946-41b2-b28b-717defc26f3a","keyframes":{"transform":["translate3d(-102.55754%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-b5055413-9155-482b-a267-ad2342eb871a","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-1c6443cd-4833-476c-b316-b42d5a6b7661","keyframes":{"transform":["translate3d(-116.38418%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-f5c042c6-8b74-4507-83a1-a3de37d30ccf","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]

Discuss the advantages and disadvantages of using JDBC for database connectivity in Java.

[{"selector":"#anim-20cdea33-1d7c-4fa9-b22e-12804ca68fa7 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-7.812499744007886%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}] [{"selector":"#anim-2d667615-a8e3-43c8-8ef3-0a4fbb03ed06","keyframes":{"transform":["translate3d(103.10734%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-b01bdfc7-f390-4aa1-a0ec-cc8e3bd607e1","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-eb821d4f-2a10-4298-abb6-7396f66ad5a3","keyframes":{"transform":["translate3d(-102.8133%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-c43f109e-d1b9-4d14-8584-5c3e75c54fbd","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-4ebd2fce-497c-4461-b9a2-d92e9a81061e","keyframes":{"transform":["translate3d(-110.45197%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-7a5002b4-bd84-45d3-9990-bab48b627dc8","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]

What is the Java Virtual Machine (JVM) and how does it work?

[{"selector":"#anim-96773d87-4f13-4d91-9fe6-fef614ff873e [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.249999886225726%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}] [{"selector":"#anim-7a174f61-fb0c-426f-8279-4c1294e42841","keyframes":{"transform":["translate3d(105.64972%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-98132b42-2582-43ad-9112-651c8710a912","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-eafa83f1-05d9-43ef-a7f2-804ffd87ebee","keyframes":{"transform":["translate3d(-102.8133%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-27b4e1fe-e6a8-43e5-be49-f2c07b27a86f","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-7e048aa3-427d-4bdf-984d-8d9d90584a91","keyframes":{"transform":["translate3d(-110.45197%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-663c6c88-d261-4a91-bbaa-d120698a6d08","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]

What are the best practices for exception handling in Java?

[{"selector":"#anim-00d1b3a9-82ba-4202-885c-c0c7771ef089 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-7.812499744007886%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}] [{"selector":"#anim-f800ba7a-dfea-4310-b0df-fc58aa86437f","keyframes":{"transform":["translate3d(105.64972%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-787b22b1-fa70-450d-9e04-ba048281b4b0","keyframes":{"transform":["rotateZ(180deg)","rotateZ(0deg)"]},"delay":1000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-5c9374ad-51fb-49ab-a1a9-351c1ad07947","keyframes":{"transform":["translate3d(-102.8133%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-0d169620-d3e8-4644-b7f4-4b5da8c7364d","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-30d7a669-089b-4839-a0d8-ca01b25c171c","keyframes":{"transform":["translate3d(-110.45197%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-c808dd72-3f37-466f-b9a7-922719d1b987","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}]

You're now armed with advanced Java knowledge to tackle even the toughest interview questions. Go ahead, impress your interviewer, and land that dream Java job!

[{"selector":"#anim-2fae29c2-c1f7-4985-819a-7cbb711d2ff8 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.24642981765875%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":1000,"fill":"forwards"}] [{"selector":"#anim-c27455fc-adc1-4d7e-ba32-0189f06ee472","keyframes":{"transform":["translate3d(-102.55754%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-c4ff69f8-2ed8-4845-bea7-e1c2ae2b1e1a","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-9c61c4a4-7ccb-410c-9287-f58886a41ec7","keyframes":{"transform":["translate3d(-108.19208%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-252b3ea5-dced-49d9-8ee2-dd6862b57a66","keyframes":{"transform":["rotateZ(-180deg)","rotateZ(0deg)"]},"delay":2000,"duration":1000,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] Enroll now

Questions of Java asked in interview

Preparing for a Java interview? Take a deeper dive into advanced topics with our comprehensive guide.

What are the differences between HashSet and TreeSet in Java?

Understand the distinctions between these two data structures and when to use each.

Credit: GroTechMinds

Explain the concept of Generics in Java with an example.

Dive into the world of Generics and how they enhance type safety and reusability in Java.

Credit: GroTechMinds

What is the difference between method overloading and method overriding in Java?

Explore the nuances between these two important concepts in object-oriented programming.

Credit: GroTechMinds

How does garbage collection work in Java?

Gain insights into Java's automatic memory management system and the role of the garbage collector.

Credit: GroTechMinds

Describe the principles of SOLID design in Java.

Learn about the five principles of object-oriented design and their significance in building scalable and maintainable software.

Credit: GroTechMinds

What are lambda expressions in Java?

Provide an example demonstrating their usage. - Delve into the world of functional programming in Java and how lambda expressions simplify code.

Explain the concept of multithreading and synchronization in Java.

Understand how Java enables concurrent execution and how to synchronize access to shared resources.

Credit: GroTechMinds

Discuss the advantages and disadvantages of using JDBC for database connectivity in Java.

Explore the pros and cons of using Java Database Connectivity for interacting with databases.

What is the Java Virtual Machine (JVM) and how does it work?

Learn about the role of the JVM in executing Java bytecode and ensuring platform independence.

Credit: GroTechMinds

What are the best practices for exception handling in Java?

Discover tips and best practices for effectively handling exceptions and errors in Java applications.

Credit: GroTechMinds

You're now armed with advanced Java knowledge to tackle even the toughest interview questions. Go ahead, impress your interviewer, and land that dream Java job!