Interview Questions and Answers for 'Egain' - 2 question(s) found - Order By Rating Q1. Can we call the garbage collector explicitly ? Core Java
Ans. Yes, We can call garbage collector directly but it doesn't guarantees that the gc will start executing immediately. This gc( ) method appears in both Runtime and System classes of java.lang package. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 4 Companies expert Related Questions Why Char array is preferred over String for storing password? Does garbage collection guarantee that a program will not run out of memory? Describe, in general, how java's garbage collector works ? Let's suppose we have an to destroy objects, Design a program to implement garbage collection ? Should we override finalize method ? What are strong, soft, weak and phantom references in Java ? What does String intern() method do? Which type of memory is cleaned / recovered by garbage collection - stack or heap ? Java doesn't provide exclusive access to memory like C/C++ and other lower level languages ? What are the advantanges and disadvantages ? Q2. Difference between jar , war and ear ? Java EE
Ans. Jar is Java Archieve i.e compressed Class or Class / Java files. Help us improve. Please let us know the company, where you were asked this question : Like Discuss Correct / Improve Asked in 12 Companies basic frequent Related Questions Can we generate Java Documentation using Export -> JavaDoc using a jar file ? How can I change the default location of the generated jar when I command "mvn package"? What would you do if you have to add a jar to the project using Maven ? If you are given a choice to have a functionality shared either through dependency or through a Web service, which one will you choose ? Given 2 jars of 5 ltr and 3 ltr, how will you get 4 ltrs in one of those jars ? Can we deploy an application to server using a jar file ? What is Jar ? If you are given a Jar file , How can you go through it understand what it does Why do we have multiple core java jars in java 9 ?
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