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Showing posts from February, 2022

Angular - Q&A

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  bootstrapping [when angular app runs initially] lifecycle types of directives : package.json ng new <app-name> component -> typescript file Also called annotation or meta data. Angular Architecture. -> ROUTING Implementation: View          <  -- >.html file <  ---  > .Routing.ts File  routerLink instead of href router-outlet : division of page where the routerLink component will be loaded. path & component : in routing.ts file  Routing can also be done from Component (  .ts File) :  -> LAZY Loading : on-demand loading OR loading what is essential and necessary. Implementation in Angular :  break project in form of child/multiple components . loadChildren : in routing.ts file provide path for the component for which u want lazy loading. > Services: Ex : Validation / Loggers / HTTP ... implemented inside .Module.ts file  initializing the dependency directly without new keywo...

schedule

 - iscs (Sam)-  Client -  TIBCO - 09/02/2022 -> 4 pm  - Sanjay -  Client  :  https://www.worklogix.com/ (Chennai) - 10/02/2022 -> 5 30 pm -Poonam -Company Website-   http://www.2020ai.ai/  - (Pune) - Springboot -angular - java - main UI - 6: 30 phonic - delloite -   10 /02/2022 -> 12 00 pm

Java and spring - Interview Q&A

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  è  Spring interview questions  Ø Marker interface : is the interface that doesn't has any constant or methods inside it. So it is a kind of meta data about the class which tells what extra the class will do. Example : Cloneable, serializable , repository in spring interfaces. Using this we can override clone method from object class. Ø Why we need marker interface? Coz it adds extra features , Ex: if we want to override clone method  in above student class then it cant be done without implementing Cloneable interface, it will give cloneNotSupportException.   è 5 most accuring annotations : Ø   BeanCreationException: in case of circular dependency we get this exception . Ex A is dependent on B and vice versa so while creation of bean it will fail. Ø   NoSuchBeanDefinationException : if the bean which is being autowired is not annotated with @Component / its bean is not instansiated in Spring container. Ø   NoUniqueBeanDefinationsExc...