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Core Java - Interview Questions and Answers for 'Builder pattern' - 3 question(s) found - Order By Newest

 Q1. Give an Example for Builder Pattern ?Core Java
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Ans. String str = new StringBuilder().append("Buggy").append("Bread").toString();

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   Like         Discuss         Correct / Improve     java   builder pattern   design pattern   stringbuilder   string     Asked in 3 Companies

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 Q2. Write code for the usage of Builder Design Pattern

Ans. http://javasearch.buggybread.com/CodeSnippets/searchCodeSamples.php?&category=code&searchOption&keyword=964

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   Like         Discuss         Correct / Improve     builder design pattern  builder pattern  code  coding      intermediate


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 What is the difference between these two approaches of creating singleton Class ?

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 What is the difference between following two segments of code

Code 1

int x = 4 * 3;
int y = x * 5;

Code 2

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 Q3. Write a class explaining builder pattern ?Design2016-08-17 10:32:03

Ans.
public class BuggyBread { 

private String element1;

private String element2;

private BuggyBread(String element1, String element2){
this.element1 = element1;
this.element2 = element2;
}

public static class Builder {

private String element1;

private String element2;

Builder(BuggyBread buggybread){
element1 = buggybread.element1;
element2 = buggybread.element2;
}

Builder withElement1(String element1){
this.element1 = element1;
return this;
}

Builder withElement2(String element2){
this.element2 = element2;
return this;
}

BuggyBread build(){
BuggyBread buggybread = new BuggyBread(element1,element2);
return buggybread;
}
}
}


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   Like         Discuss         Correct / Improve     builder pattern  builder class

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Related Questions

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 Q4. With the following code, Which is a valid way to initialize ?
public class BuggyBread {

   private String element1;

   private String element2;

   private BuggyBread(String element1, String element2){
      this.element1 = element1;
      this.element2 = element2;
   }

   public static class Builder {
   
      private String element1;

      private String element2;

      Builder(BuggyBread buggybread){
         element1 = buggybread.element1;
         element2 = buggybread.element2;
      }

      Builder withElement1(String element1){
         this.element1 = element1;
         return this;
      }

      Builder withElement2(String element2){
         this.element2 = element2;
         return this;
      }

      BuggyBread build(){
         BuggyBread buggybread = new BuggyBread(element1,element2);
         return buggybread;
      }
   }
}
Core Java
a. BuggyBread buggybread = new BuggyBread();
b. BuggyBread buggybread = new BuggyBread("element1","element2");
c. BuggyBread.Builder builder = new BuggyBread.Builder();
d. BuggyBread.Builder builder = new BuggyBread.Builder("element1","element2");

Ans.d. BuggyBread.Builder builder = new BuggyBread.Builder("element1","element2");


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