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Core Java - Interview Questions and Answers for 'Stringjoiner' - 2 question(s) found - Order By Rating

Not frequently asked as it was introduced with Java 8.
 Q1. What is StringJoiner ?Core Java
Ans. StringJoiner is a util method to construct a string with desired delimiter. This has been introduced with wef from Java 8.

Sample Code

StringJoiner strJoiner = new StringJoiner(".");

strJoiner.add("Buggy").add("Bread");

System.out.println(strJoiner); // prints Buggy.Bread


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   Like         Discuss         Correct / Improve     java   java8   java 8   string   stringjoiner

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or

What is the difference between String , StringBuilder and StringBuffer ?
  What are different ways to create String Object? Explain.
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 Which of the following is false about main method ?

a. It should be declared public and static
b. it should have only 1 argument of type String array
c. We can override main method
d. We can overload main method

Rarely asked as it was introduced with Java 8.
 Q2. Which of the following has been introduced with Java 8 ? a. StringBuffer b. StringBuilder c. StringFilter d. StringJoinerCore Java
Ans. StringJoiner

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

   Like         Discuss         Correct / Improve     java   java8   java 8   string   stringjoiner

Related Questions
  Difference between == and .equals() ?
  Why is String immutable in Java ?
  Explain the scenerios to choose between String , StringBuilder and StringBuffer ?

or

What is the difference between String , StringBuilder and StringBuffer ?
  What are different ways to create String Object? Explain.
  Why Char array is preferred over String for storing password?
  What is a String Pool ?
 How does making string as immutable helps with securing information ? How does String Pool pose a security threat ?
 How is string object immutable if we can concat a string to it ?
  What is StringJoiner ?
 Which of the following is false about main method ?

a. It should be declared public and static
b. it should have only 1 argument of type String array
c. We can override main method
d. We can overload main method

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