Fujitsu Senior Application Developer Interview Questions, Process, and Tips

Q1. What are the types of exceptions ?
Ans. 
There are two types of exceptions: checked and unchecked.
• Checked exceptions are checked at compile-time and must be handled by the programmer.

• Unchecked exceptions are not checked at compile-time and can be handled by the JVM.

• Examples of checked exceptions include IOException and SQLException.

• Examples of unchecked exceptions include NullPointerException and ArrayIndexOutOfBoundsException.
Answered by AI
Add your answer
Q2. How will you handle exceptions of a procedure getting called in another procedure.
Ans. 
I will use try-catch blocks to handle exceptions and log the error message for debugging purposes.
• Enclose the procedure call in a try block.

• Catch the exception in the catch block.

• Log the error message for debugging purposes.

• Handle the exception appropriately based on the specific scenario.
Answered by AI
Add your answer

Q1. What are your salary expectations?
Add your answer
Q2. Share details of your previous job.
Add your answer
Q3. Why are you looking for a change?
Add your answer

Q1. What is COND parameter
Ans. 
COND parameter is used in JCL to specify a condition for executing a job step.
• COND parameter is used in IF/THEN/ELSE statements to determine the execution of a job step.

• It can be used to check the return code of a previous step or a specific condition.

• COND parameter can have values like ONLY, EVEN, ONLY EVEN, etc.

• It can also be used with the NOT operator to negate the condition.

• COND parameter can be used with job steps
Answered by AI
Add your answer
Q2. Used in JCL to skip few steps
Ans. 
COND parameter is used in JCL to skip few steps
• COND parameter is used in JCL to specify a condition that must be met before executing a step

• If the condition is not met, the step is skipped

• The syntax for using COND parameter is: COND=(code,operator,stepname)

• For example, COND=(0,NE,STEP1) will skip the step if the return code of the previous step is not 0
Answered by AI
Add your answer

Q1. What is DISTINCT in DB2
Ans. 
DISTINCT is a keyword in DB2 used to retrieve unique values from a column or set of columns.
• DISTINCT is used in SELECT statements to eliminate duplicate rows.

• It can be used with one or more columns.

• It is often used in conjunction with aggregate functions like COUNT, SUM, AVG, etc.

• Example: SELECT DISTINCT column1, column2 FROM table_name;

• Example: SELECT COUNT(DISTINCT column_name) FROM table_name;
Answered by AI
Add your answer
Q2. Used to remove duplicates
Ans. 
The function used to remove duplicates is called 'distinct'.
• Distinct is used in SQL to remove duplicate rows from a result set.

• In Python, the set() function can be used to remove duplicates from a list.

• The unique() function in R can be used to remove duplicates from a vector.
Answered by AI
Add your answer

Q1. Swap the value of two variables without using the third variable
Ans. 
To swap the value of two variables without using a third variable, use arithmetic operations.
• Use addition and subtraction to swap values

• Example: a = 5, b = 10. a = a + b (a = 15), b = a - b (b = 5), a = a - b (a = 10)
Answered by AI
View 1 more answer
Q2. Basic javascript - Promises, Callbacks, difference in event handling in javascript & react.js
Ans. Synthetic events are present in React, syntax differences
Answered Anonymously
Add your answer
Q3. What is Context API
Ans. 
Context API is a feature in React that allows sharing data between components without having to pass props through every level of the component tree.
• Context API provides a way to pass data through the component tree without having to pass props down manually at every level.

• It is particularly useful for passing down global data like themes, user authentication, or language preferences.

• Context API consists of three main ...read more
Answered by AI
View 1 more answer
Q4. How do you orient some components in react with 40 or more pages? whats your approach?
Ans. 
Use a routing library like React Router to manage navigation and organize components into separate pages.
• Utilize React Router to set up routes for each page and handle navigation

• Organize components into separate folders based on their functionality or page they belong to

• Consider lazy loading components to improve performance, especially with a large number of pages
Answered by AI
View 1 more answer
Q5. How would you optimize an application?
Ans. 
Optimizing an application involves identifying and resolving performance bottlenecks to improve efficiency and user experience.
• Identify and address slow database queries or inefficient code

• Implement caching mechanisms to reduce load times

• Optimize images and assets to reduce file sizes

• Utilize asynchronous processing to improve responsiveness

• Profile and analyze code to identify areas for improvement
Answered by AI
Add your answer

I was asked about ReactJS and Node JS questions and 3 coding questions

Q1. Basic java questions
Add your answer
Q2. Stream api and lambda
Add your answer

Q1. About Front End technology & Javascript
Add your answer
Q2. Angular Basics to Advanced Concept
Add your answer

Q1. Difference between== and ==== in LWC.
Ans. 
In LWC, == is used for loose equality comparison while ==== is used for strict equality comparison.
• == is used for comparing values without considering data types

• === is used for comparing values while also considering data types

• Example: '1' == 1 will return true, but '1' === 1 will return false
Answered by AI
Add your answer
Q2. In how many ways we can communicate in LWC and what are they
Ans. 
There are three ways to communicate in LWC: event communication, public properties, and method calls.
• Event communication: Components can communicate by firing and handling events.

• Public properties: Components can communicate by passing data through public properties.

• Method calls: Components can communicate by calling methods on other components.
Answered by AI
Add your answer