Write a method called firstUnique() that takes a string as a parameter and finds the first non-repeating character in it by doing only one traversal of it. For example, ‘w’ is the first non-repeating character in the string “hellohowareyou”.
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java using set or map
Write a method called firstUnique() that takes a string as a parameter and finds the first non-repeating character in it by doing only one traversal of it. For example, ‘w’ is the first non-repeating character in the string “hellohowareyou”.
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- Use for loop in Java language Write the method stringSplosion().* * The method takes one parameter, a non-empty String str (such as "Code") and* returns a String in the form "CCoCodCode". Notice that this includes the* first character of the original String, followed by the first two characters,* and so on until the whole String is used.* * Examples: stringSplosion("Code") returns "CCoCodCode" stringSplosion("abc")* returns "aababc" stringSplosion("x") returns "x"* * @param str the input String to process.* @return a new String as described above.java Finish the method called countAppearance() that will take String [] and String arguments and return an int for the number of times the given String word is found in the given String [] arr. This is a return method with String[] and String parametersa Java static method that will take an array of strings as its only parameter. The method will return the first string alphabetically (lowest) in the array.
- IN JAVA Create a function that takes a string and returns the number of alphanumeric characters that occur more than once. Examples duplicateCount ("abcde") → 0 duplicateCount ("aabbcde") → 2 duplicateCount ("Indivisibilities") → 2 duplicateCount ("Aa") → 0 // Case sensitiveLanguage: 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:Write in C Language Spilitology Yosef is a peculiar fellow. He introduced the idea to study a string by splitting it into two, and he called it Splitology. Why split a string? We do not know. Didn’t we say that Yosef is a weird one? Yosef is interested in one particular type of string, a palindrome. A palindrome is a string that is the same for both forwards and backwards. Example of palindrome strings are “ada”, “taat”, and “radar”. On the other hand, string such as “taman” is not a palindrome; notice that “taman” becomes “namat” if read backwardsand it’s not the same as “taman”. As the idea of Splitology is still new, Yosef is investigating whether a string can be split into two non-empty strings such that each string is a palindrome. For example, the string “malamini” can be split into “malam” and “ini” while both of them are palindrome. Another example is “ababab”. It can be split into “aba” and “bab”, and both of them are palindrome. Note that “ababab” can also be split into…
- Write a java program with a method that reverses a string The method must accept one parameter of type String (string to reverse), and returns every second element from the end to the beginning. For example: String: thisisstringResult is: g i t s s hjava: Run length coding is a method to represent a string in a more compact manner. Each character that occurs more than 2 times in a row is represented by the character and a number following it. Two examples are: "abba" → "abba""abcccbbbba" → "abc3b4a"Write a function that calculates how many characters the encoded string is shorter than the original.Hello. I can't get this Java code to work. It takes a series of sentences as a single string. The function capitalizes the first letter of every sentence What am I doing wrong? /*Programming ChallengesChapter 9 #3 Pg. 608 Title: Sentencee CapitallizerWrite a method that accepts a String object as an argument and returns a copy of the stringwith the first character of each sentence capitalized. For instance, if the argument is “hello.my name is Joe. what is your name?” the method should return the string “Hello. My nameis Joe. What is your name?” Demonstrate the method in a program that asks the user toinput a string and then passes it to the method. The modified string should be displayed onthe screen.*/ import javax.swing.JOptionPane; public class SentenceCapitalizer{public static void main(String[] args){String input;input = JOptionPane.showInputDialog("Enter a string.");JOptionPane.showMessageDialog(null, sentenceCap(input));System.exit(0);} public static String sentenceCap(String…
- 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",…java program Write code that accomplishes the following tasks. Consider two bags that can hold strings. One bag is named letters and contain seeral one-letter strings. The other bag is empty and is namedvowels. One at a time removed a string from letters. If the string contain a vowel place it into bag vowels, otherwise, discard the string. After you have checked all of the strings in letters, report the number of vowels and the number of times each voewl appears in the bag.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…