Interview Question and Answers | Search Coding Interview Questions

Interview Questions and Answers - Order By Newest

Q1531. Write a program to print count / no of common words in 2 separate strings

Ans. public class BuggyBread {
   public static void main(String args[]) {
       String str1 = "we are what we repeatedly Do excellence, then, is not an act but a haBit";
       String str2 = "we are what we repeatedly Do is";
       String[] str1Words = str1.split(" ");
       String[] str2Words = str2.split(" ");

       Set str1WordsSet = new HashSet();

       for(String word:str1Words){
          str1WordsSet.add(word);
       }

       int commonWordsCount = 0;

       for(String word:str2Words){
          if(str1WordsSet.contains(word)){
             commonWordsCount++;
          }
       }

       System.out.println(commonWordsCount);
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve String coding code}

Q1532. Write a Program to remove duplicate words from the String

Core Java

Ans.
public class BuggyBread {
public static void main(String args[]) {
String str = "we are what we repeatedly Do excellence, then, is not an act but a haBit";
Set<String> wordSet = new LinkedHashSet(); // Using Linked Hash Set as we would like to retrieve words in the insertion order

for(String word: str.split(" ")){
wordSet.add(word);
}

for(String word: wordSet){
System.out.print(word);
System.out.print(" ");
}
}
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve String coding code Asked in 1 Companies basic}

Q1533. Write a Program to display the words of a String in alpahbetical or Dictionary Order

Core Java

Ans. public class BuggyBread {
   public static void main(String args[]) {
       String str = "we are what we repeatedly do excellence then is not an act but a haBit";
       Set<String> wordSet = new TreeSet(); // Using Linked Hash Set as we would like to retrieve words in the insertion order

       for(String word: str.split(" ")){
          wordSet.add(word);
       }

       for(String word: wordSet){
          System.out.print(word);
          System.out.print(" ");
       }
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve String coding code}

Q1534. Difference between save and flush in Hibernate ?

Hibernate

Ans. Save is used to save the entity to the session whereas flush is to save the session content to DB.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1535. What is a fetch mode in Hibernate ?

Hibernate

Ans. It specifies an association fetching strategy. It could be DEFAULT, JOIN or SELECT as following

@Fetch(FetchMode.SELECT)

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1536. Write a program to print sum of numbers between the start and end number

For example - Passing start number as 2 and end number as 10, it should print 2+3+4+5+6+7+8+9+10 = 54

Core Java

Ans.
public class BuggyBread {
   public static void main(String args[]) {
       System.out.println(sum(2,10));
   }

   private static int sum(int start,int end){
      if(start > end){
         return 0;
      } else {
         return start + sum(start+1,end);
      }
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve recursion}

Q1537. Write a program using Recursion to print multiplication of numbers between the start and end number

For example - Passing start number as 2 and end number as 10, it should print 2*3*4*5*6*7*8*9*10 = 3628800

Core Java

Ans.
public class BuggyBread {
   public static void main(String args[]) {
       System.out.println(multiply(2,5));
   }

   private static int multiply(int start,int end){
      if(start > end){
         return 1;
      } else {
         return start * multiply(start+1,end);
      }
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve recursion}

Q1538. Write a Program to display numbers between 2 numbers using recursion

Core Java

Ans. public class BuggyBread {
   public static void main(String args[]) {
       displayNumbersBetween(2,10);
   }

   private static void displayNumbersBetween(int start,int end){
      if(start > end){
         return ;
      } else {
         System.out.println(start);
         displayNumbersBetween(start+1,end);
      }
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve recursion code coding}

Q1539. Write a Program to print asterix like following using Recursion

**
***
****
*****
******
*******
********
*********
**********

Program should set the start and end index and then display this accordingly. For example the above pattern is for displayNumbersBetween(2,10) and following is for displayNumbersBetween(5,7)

*****
******
*******

Core Java

Ans. public class BuggyBread {
   public static void main(String args[]) {
       displayNumbersBetween(5,7);
   }

   private static void displayNumbersBetween(int start,int end){
      if(start > end){
         return ;
      } else {
         for(int x=1;x<=start;x++){
            System.out.print("*");
         }
         System.out.println("");
         displayNumbersBetween(start+1,end);
      }
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve recursion code coding}

Q1540. Write a Program to print pattern like following

*
**
***
****
*****
******
*******
********
*********
**********

Core Java

Ans. public class BuggyBread {
   public static void main(String args[]) {
      for(int x=1;x<=10;x++){
         for(int y=1;y<=x;y++){
            System.out.print("*");
         }

         System.out.println("");
      }
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve coding code}

Q1541. Write a Program to print pattern like following

*_**_***_****_*****_***************

Core Java

Ans. public class BuggyBread {
   public static void main(String args[]) {
      for(int x=1;x<=5;x++){
         for(int y=1;y<=x;y++){
            System.out.print("*");
         }

         System.out.print("_");
      }

      for(int x=5;x>=1;x--){
         for(int y=1;y<=x;y++){
            System.out.print("*");
         }

         System.out.print("");
      }
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1542. Write a Program to print numbers like following

1
12
123
1234
12345

Core Java

Ans. public class BuggyBread {
   public static void main(String args[]) {
      for(int x=1;x<=5;x++){
         for(int y=1;y<=x;y++){
            System.out.print(y);
         }

         System.out.println(" ");
      }
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1543. Write a Program to print numbers like following

1
22
333
4444
55555

Core Java

Ans. public class BuggyBread {
   public static void main(String args[]) {
      for(int x=1;x<=5;x++){
         for(int y=1;y<=x;y++){
            System.out.print(x);
         }

         System.out.println(" ");
      }
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1544. Difference between concurrentHashMap and HashTable ?

Core Java

Ans. HashTable locks the complete collection to provide synchronization whereas ConcurrentHashMap only locks segments to achieve synchronization and hence better efficient and faster.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve concurrentHashMap HashTable Map Collections Asked in 2 Companies}

Q1545. isnt the use of HashTable and ConcurrentHashMap the same, i.e providing synchronized map collection ?

Core Java

Ans. Yes, they both aim at providing synchronized access to the Map collection. The only difference is in their implementation. ConcurrentHashMap came after HashTable and hence technically more efficient as it doesn't lock the complete map while accessing it.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve HashTable ConcurrentHashMap map Collections}

Q1546. What are the advantages of Spring interceptor over Servlet Filters ?

Spring

Ans. Spring Interceptor are Spring beans and hence they can inject other beans and can be used with other Spring frameworks concepts like AOP.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve interceptors servlet filters spring interceptors vs servlet filters}

Q1547. Upon compiling the following class, What .class files will get created

public class OuterClass{
class InnerClass{
}
}

Core Java

Ans. OuterClass.class AND OuterClass$InnerClass.class

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve class files compilation compile inner classes nested classes}

Q1548. Write a Program to validate an email address

Core Java

Ans. public class Class{
public static void main(String[] args){
String str = "xyz@123.com";

if(!str.contains("@") && !str.contains(".") && (str.indexOf('.') < str.indexOf('@'))){
System.out.println("Not a Valid Email Address");
}
}
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve validate an email address coding code Asked in 3 Companies}

Q1549. Write a Program to validate if a particular character occurs after another in a string

Core Java

Ans. public class Class{
   public static void main(String[] args){
      String str = "xyz123.co@m";

      if(str.indexOf('.') < str.indexOf('@')){
         System.out.println("Not a Valid Email Address");
      }
   }
}

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve string string.indexOf coding code}

Q1550. Difference between Singleton and Factory Design Pattern ?

Design

Ans. Both are creational design patterns but singleton facilitates in creation and reuse of single object whereas Factory deals with creation of multiple objects.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Design pattern singleton factory singleton vs factory Asked in 4 Companies}

Q1551. What is dynacache and role of cachespec.xml in WCS ?

IBM WCS

Ans. Dynacache in WCS is the object cache. Instead of creating objects again and again , the store objects are rendered on the basis of matched rules. Caching rules are stored in a configuration file called cachespec.xml.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve dynacache cachespec.xml}

Q1552. Can we see objects cached in Dynacache ?

IBM WCS

Ans. We can see , monitor and can even change dynacache manually but for that we need to install a seperate application provided by WCS.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Dynacache}

Q1553. How to enable Cross Site scripting protection in WCS ?

IBM WCS

Ans. By specifying XSiteScriptingProtection within wc-server.xml. Prohibited characters and attributes are specified within XSiteScriptingProtection to protect the application from any XSS attach.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Cross site scripting XSS attack XSS XSiteScriptingProtection wc-server.xml}

Q1554. What is an Asset store ?

IBM WCS

Ans. Asset stores are collections of sharable resources (business artifacts, business processes and storefront assets) that can be leveraged in other stores.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve asset store}

Q1555. What is an Attribute Dictionary and What are its benefits ?

IBM WCS

Ans. Attribute dictionary is a set of common attributes that can be reused by multiple products.

The attribute dictionary provides a central place to manage shared attributes, with the following features:
The ability to standardize attributes.
The ability to easily compare attributes shared by products and SKUs.
The ability to quickly change attributes in one place to affect all catalog entries.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve Attribute dictionary}

Q1556. What is ETL ?

Process

Ans. ETL is Extract , Transform and Load. As the name suggest , it is the process of Data extraction , fabrication and then transfer to Database. Data Migration is one case of ETL.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1557. Whats is a starter store ?

IBM WCS

Ans. Its the default store that comes in built with WCS.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve}

Q1558. What is SAR file ?

IBM WCS

Ans. Its the Store Archive that holds the store Assets in the compressed form.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve SAR file store archieve}

Q1559. What is suborder ?

ECommerce

Ans. Part of the order that needs to be shipped to a particular Address. There could be an Order where different portions needs to be delivered to different addresses. Each portion in such case is a suborder.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve order management sub order ecommerce}

Q1560. What is backorder ?

ECommerce

Ans. The status of an ordered product when inventory allocation has determined that the product is not available.

Help us improve. Please let us know the company, where you were asked this question :

_{Like Discuss Correct / Improve order management back order ecommerce}

Search Interview Questions

Help us and Others Improve. Please let us know the questions asked in any of your previous interview.