Q1. What is StringJoiner ?
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
Q2. Which of the following has been introduced with Java 8 ?
a. StringBuffer
b. StringBuilder
c. StringFilter
d. StringJoiner
Ans. StringJoiner
Q3. What is the package name for StringJoiner class?
Ans.java.util
Q4. Which is the Parent Class of StringJoiner class?
Ans.java.lang.Object
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
Q2. Which of the following has been introduced with Java 8 ?
a. StringBuffer
b. StringBuilder
c. StringFilter
d. StringJoiner
Ans. StringJoiner
Q3. What is the package name for StringJoiner class?
Ans.java.util
Q4. Which is the Parent Class of StringJoiner class?
Ans.java.lang.Object