Top 05 Advance Backend Programming Languages Interview Questions

1. Java

[{"selector":"#anim-16187c2e-a4d9-4869-96a9-5fa25d7079c6 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-02ed04a0-7649-422b-be95-ce867330b423","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8f317df9-c7a4-4e3c-bd2d-c17a94c5fea2","keyframes":{"transform":["translate3d(0px, -2232.88747%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-01a0323b-1c09-4ba1-b988-33e0636474a6","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8d9f4c45-48e6-42d5-a490-bd4cc1bd3329","keyframes":{"transform":["translate3d(0px, 403.30296%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] www.devstringx.com Explain the difference between JDK, JRE, and JVM.

2. Python

[{"selector":"#anim-2c3f69f6-0996-41f4-b690-686184972177 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-3.552713678800501e-15%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-e7061340-b514-4196-aea2-1dbda1625659","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ed73444e-3de5-4cad-8da1-b4c63d9c0ddc","keyframes":{"transform":["translate3d(0px, -2232.88747%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b7de079e-4a6d-4b32-97f3-e93804db7da9","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-c1592257-f24c-4e81-8579-ea72bfcb683b","keyframes":{"transform":["translate3d(0px, 403.30296%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] www.devstringx.com What are Python decorators and how do they work?

3. C#

[{"selector":"#anim-95a83396-379c-41b6-b371-e3ac8dedef42 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-6ef39dca-8a21-4177-8dce-9f1f0f65801f","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-de9b8726-2393-4bec-88e6-ce26e7c8a3d6","keyframes":{"transform":["translate3d(0px, -2232.88747%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-340e5ae9-2382-4eec-8ed6-4df6e5949035","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7ea85715-8080-4aef-8691-936ffc724100","keyframes":{"transform":["translate3d(0px, 403.30296%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] www.devstringx.com What is the difference between a struct and a class in C#?

4. Go (Golang)

[{"selector":"#anim-c8be3d34-d396-45b6-893e-a1672fc8f7f9 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-0eb4d549-fecb-425c-87aa-02e11fa244c0","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a20f55b2-1a32-499f-abff-5749cb219226","keyframes":{"transform":["translate3d(0px, -2232.88747%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-91589745-87d6-44e3-9899-0125583be20f","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-db40a510-5bec-4f57-9f96-057fceeb08c3","keyframes":{"transform":["translate3d(0px, 403.30296%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] www.devstringx.com What is a goroutine and how is it different from a thread?

5. Node.js (JavaScript/TypeScript)

[{"selector":"#anim-2b420f3e-3b27-4970-bb9d-72d7efd28730 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2805c688-4ad2-4eb2-b10c-66977f7fea21","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a2c03b40-d654-4f76-b520-7b5f5f7a2009","keyframes":{"transform":["translate3d(0px, -2232.88747%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7dd01ccb-5b96-483a-8e18-90328d5436ab","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8a164601-da7c-4a42-8c37-c71ae7910dcc","keyframes":{"transform":["translate3d(0px, 403.30296%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] www.devstringx.com How do you handle error propagation in a Node.js callback?

Check out our latest story on Top 05 Benefits of NOSQL (2024)

[{"selector":"#anim-6192da1e-063b-496e-a572-f4a5e5a587ce [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-c7c727d9-06ad-41ec-b5c0-6973b1021da5","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-1769ece0-3c20-480d-8945-21231fe739f9","keyframes":{"transform":["translate3d(0px, -851.11107%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-04daa838-56fc-4e13-9fe6-01843adf2a28","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f62948e0-8cae-4c7f-ab75-0b9c9dfe1f42","keyframes":{"transform":["scale(1)","scale(1.5)","scale(0.95)","scale(1)"],"offset":[0,0.33,0.66,1]},"delay":0,"duration":1450,"easing":"ease-in-out","fill":"both","iterations":5}] www.devstringx.com