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Q2491. Write code to print a Pyramid pattern ?

Ans. public static void printTriagle(int n)
{
// outer loop to handle number of rows
// n in this case
for (int i=0; i1; j--)
{
// printing spaces
System.out.print(" ");
}

// inner loop to handle number of columns
// values changing acc. to outer loop
for (int j=0; j<=i; j )
{
// printing stars
System.out.print("* ");
}

// ending line after each row
System.out.println();
}
}

// Driver Function
public static void main(String args[])
{
int n = 5;
printTriagle(n);
}

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Q2492. If your application has multiple databases, how many changes you have to made in Hibernate?

Hibernate

Ans. If you have mulitple Databases you just need to add multiple configuration files and create the corresponding SessionFactory object.

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Q2493. If SOAP is more secure than Rest, Why many applications today use Rest ?

Web Service

Ans. SOAP supports only xml whereas Rest support many other formats.

Rest services are very light weight compared to SOAP.

SOAP services are code heavy as they require creation. of stubs and skeltons.

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Q2494. What does System.exit() do ?

Core Java

Ans. Generally used to indicate termination

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Q2495. What are different types of IOC containers ?

Design

Ans. J2ee Web Containers and Core Containers

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Q2496. How to sort objects based on one of the field ?

Core Java

Ans. Using comparable and comparator and sorted collections like TreeSet or TreeMap.

or

use stream api from java 8 onwards which internally refers to comparable and comparator through lambda expressions

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Q2497. Given an Employee Table with Salary Column, Find 2nd and 5th highest salary in a particular department.

SQL

Ans. Select salary from (select salary from employee where department = order by salary desc limit 5) emp order by salary limit 1 AND Select salary from (select salary from employee where department = order by salary desc limit 2) emp2 order by salary limit 1

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Q2498. Difference between Component-Scan and @Component annotation ?

Spring

Ans. @component mark a java class as a bean so that component scan mechanism of spring pick it up and register in IOC container.

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Q2499. What are the different job permissions possible in Jenkins, and what are the reasons you would use each?

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