Java String (Basic)

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Which method is used to find the length of a string?

toUpperCase

equals

length (correct)

compareTo

Which method is used to concatenate two strings?

toUpperCase

compareTo

equals

concat (correct)

Which method is used to convert a string to uppercase?

equals

toUpperCase (correct)

length

compareTo

Which method is used to find the character at a specific index in a string?

charAt Signup and view all the answers

Which method is used to compare two strings and ignore the case?

compareToIgnoreCase Signup and view all the answers

Which method is used to check if two strings are equal?

equals Signup and view all the answers

Which method is used to get a substring of a string?

substring Signup and view all the answers

Which class is used to create and manipulate strings in Java?

String Signup and view all the answers

What is the term used to describe a sequence of characters written inside double-quotes in Java?

String Signup and view all the answers

What is the term used to describe the special memory area where strings are stored in Java?

Pool Signup and view all the answers

What happens when a new string is created in Java?

A new string is created and returned Signup and view all the answers

What is the most common way of creating a Java string?

Using String Literal Signup and view all the answers

What happens when a string with the exact same value as an existing string is created in Java?

A reference is created pointing to the existing string Signup and view all the answers

How many methods of creating strings are there in Java?

2 Signup and view all the answers

Which method is used to get the substring from the beginIndex till the end of the string?

substring(int beginIndex) Signup and view all the answers

Which method is used to check if the string contains a particular substring or not?

contains(String) Signup and view all the answers

Which method is used to replace all occurrences of string1 in the string with string2?

replace(String1, String2) Signup and view all the answers

Which method is used to replace only the first occurrence of string1 with string2?

replaceFirst(String1, String2) Signup and view all the answers

Which method is used to remove all occurrences of string1 with string2?

replaceAll() Signup and view all the answers

Which method is used for finding the index of the first occurrence of the character/string?

indexOf(String) Signup and view all the answers

Which method is used to remove all the extra spaces from the beginning and end of a string?

trim() Signup and view all the answers

Which method is used to check whether a string is empty or not?

isEmpty Signup and view all the answers

What does the 'hashCode()' method return?

The hashcode of the string Signup and view all the answers

Which method is used to split a string based on a delimiter?

split Signup and view all the answers

What does the 'toCharArray()' method do?

Converts a string to an array of characters Signup and view all the answers

Which method is used to convert a string to itself?

toString Signup and view all the answers

What does the 'lastIndexOf()' method return?

The last occurrence of a character Signup and view all the answers

What does the 'split(String, int)' method do?

Splits a string based on a delimiter and limits the number of split strings Signup and view all the answers

What does the 'join()' method do?

Joins strings together using a delimiter Signup and view all the answers

What is the purpose of the 'split(String)' method?

To split a string based on a delimiter with no limitation on the number of split strings Signup and view all the answers

Java String (Basic)

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Questions and Answers

Which method is used to find the length of a string?

Which method is used to concatenate two strings?

Which method is used to convert a string to uppercase?

Which method is used to find the character at a specific index in a string?

Which method is used to compare two strings and ignore the case?

Which method is used to check if two strings are equal?

Which method is used to get a substring of a string?

Which class is used to create and manipulate strings in Java?

What is the term used to describe a sequence of characters written inside double-quotes in Java?

What is the term used to describe the special memory area where strings are stored in Java?

What happens when a new string is created in Java?

What is the most common way of creating a Java string?

What happens when a string with the exact same value as an existing string is created in Java?

How many methods of creating strings are there in Java?

Which method is used to get the substring from the beginIndex till the end of the string?

Which method is used to check if the string contains a particular substring or not?

Which method is used to replace all occurrences of string1 in the string with string2?

Which method is used to replace only the first occurrence of string1 with string2?

Which method is used to remove all occurrences of string1 with string2?

Which method is used for finding the index of the first occurrence of the character/string?

Which method is used to remove all the extra spaces from the beginning and end of a string?

Which method is used to check whether a string is empty or not?

What does the 'hashCode()' method return?

Which method is used to split a string based on a delimiter?

What does the 'toCharArray()' method do?

Which method is used to convert a string to itself?

What does the 'lastIndexOf()' method return?

What does the 'split(String, int)' method do?

What does the 'join()' method do?

What is the purpose of the 'split(String)' method?

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