n java What is the difference between a String set to null and a String set to ""?
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in java What is the difference between a String set to null and a String set to ""?
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- public static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current string.This problem is an exercise in Java string manipulation. For some mysterious reason, the Java String type does not come with a reverse method. The canonical way to reverse a Java string str is to first convert it to mutable StringBuilder, reverse its contents, and convert the result back to an immutable string, that is,str = new StringBuilder(str).reverse().toString(); Here's the tester it must pass: @Test public void testPancakeScramble() throws IOException {// Explicit test casesassertEquals("", P2J3.pancakeScramble(""));assertEquals("alu",…public static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current string. This problem is an exercise in Java string manipulation. For some mysterious reason, the Java String type does not come with a reverse method. The canonical way to reverse a Java string str is to first convert it to mutable StringBuilder, reverse its contents, and convert the result back to an immutable string, that is, str = new StringBuilder(str).reverse().tostring(); A bit convoluted, but does what is needed without fuss or muss. Maybe one day the Java strings will come with the reverse method built in, just like the string data types of all sensible…String and StringBuffer both represent String objects. Can we compare String and StringBuffer in Java?
- Description Write a Java program that compares two Strings. You have to declare a String text1 and assign it the value "programming" and then declare another String text2 and assign it the value "development". Your program should do the following: If the two Strings are exactly the same print to the screen "Exactly the same: True" otherwise print "Exactly the same: False". You may use boolean variables. If and only if the first comparison was false, a comparison should be done that ignores case sensitivity. If they are the same while ignoring the case print to the screen "Similar: True" otherwise print "Similar: False". Sample Input These sentences are the same. These sentences are the same. Sample Output Exactly the same: True Sample Input This sentence has Upper case and Lower case letters. This sentence has upper case and lower case letters. Sample Output Exactly the same: False Similar: True Sample Input Well something is wrong here Obviously they will get a false output Sample…In C Programming Language Palindrome: “A palindrome is a word, phrase, number, or other sequence of characters which reads the same backward or forward, such as ‘madam’ or ‘kayak’” (excerpt from Wikipedia).Write a program that reads 8 words from Palindrome.txt and checks whether the word you read is a palindrome (please read its description above) or not. Print the index numbers of all the palindrome words in your array. You are required to read words character by character into a character array.• Write readFile function, which gets a file pointer and a two-dim array, to read each word(bunch of characters) line by line and store them into a two-dim character array.• Write findSize function takes a one-dim array and returns its actual size.• Write isPalindrome function takes a one-dim character array to check whether the content is a polindrome or not. If the word (character squence) is a palindrome, then it returns 1. Otherwise, it returns 0.using Java. Part B – String Classifier (30%) This program will classify a string as one of the following: a palindrome, a repeated word, or “nothing special”. A word is considered repeated if it repeats only once in a string (e.g., “pizzapizza”). Some palindrome examples are: “racecar”, “aa”, and “aaa”. To determine if it is a palindrome, recommend you make use of the below method. Please make sure this program works for all cases and conditions. /** * This method will return a reversed version of the input string */ static String reverseString(String inStr) { String outStr = ""; if (inStr != null) { int startIndex = inStr.length()-1; for (int i=startIndex; i >= 0; i--) { outStr = outStr + inStr.charAt(i); } } return outStr; }
- public static String pancakeScramble(String text) This nifty little problem is taken from the excellent Wolfram Challenges problem site where you can also see examples of what the result should be for various arguments. Given a text string, construct a new string by reversing its first two characters, then reversing the first three characters of that, and so on, until the last round where you reverse your entire current stringLanguage: Java Write a program that reads a sentence from the keyboard. Depending on the last character of the sentence, print the message identifying the sentence as declarative (ends with a period), interrogative (ends with a question mark), exclamatory (end with an exclamation point), or other. Hint: you can use charAt() method from the String class to extract the last character of the input line. The character of a String str is at str.length()-1 position. For taking a sentence as input use the nextLine() method from the Scanner class. You have to use if/else if selection. Sample input and output: Sample 1 Input: How are you? Output: Interrogative Sample 2 Input: I am good. Output: Declarative Sample 3 Input: That is amazing! Output: Exclamatory Sample 4 Input: Although, Output: Other Answer:Java LAB #4 One of your colleagues wanted to generate an List of strings using a random function, and since you are an expert in programming, your colleague asked you to create a program for him that generates random letters to make this desired string (i am a programmer) how can you help him to achieve this task ? Notes: • string length must be lesser than 100 ascii code allowed range from 32 to 140 demonstrate a condition that fix the correct letter for each generation Ex: 1* gen is a profssmagdgaer, 2st gen in a progsanger -- Final gen (Im a programmez) use Arrayl.ist to make the random permutations print number of generation that makes the correct sentence
- This is the question and needs to be written in java: Write an application that accepts three unique Strings from the user and, without regard to case, appropriately displays either You did not enter the words in alphabetical order or You entered the strings in alphabetical order depending on whether the Strings were entered in alphabetical order.Please Write java application not python please? You giving us wrong answers we dont need python we need java application of Limpopo’s Car Care Shop that shows a user a list of available services: oil change, tire rotation, battery check, or brake inspection. Allow the user to enter a string that corresponds to one of the options, and display the option and its price as R250, R220, R150, or R50, accordingly. Display an error message if the user enters an invalid item.Machine Problem: JAVA LANGUAGE Write a Java program that will display the given menu: NOTE: adding a string must accept a word/phrase/sentence Important factor in phrase or sentence input: e.g (HELP me) 3. display uppercase -> HELP only 4. display lower case -> me Menu 1. Add a string 2. Display list of strings 3. Display list of uppercase words 4. Display list of lowercase words 5. Delete an uppercase word 6. Delete a lowercase word 7. End program When 1 is chosen, ask the user to enter a string and add it to a list using a linked list When 2 is chosen, display the list of strings. When 3 is chosen, display all uppercase words found in the list of strings in ascending order. (create a linked list containing all uppercase words) When 4 is chosen, display all lowercase words found in the list of strings in ascending order. (create a linked list containing all lowercase words) When 5 is chosen, display the list of uppercase words then ask the user…