Write a recursive method that converts a decimal number intoa hex number as a string. The method header ispublic static String dec2Hex(int value)Write a test program that prompts the user to enter a decimal number and displaysits hex equivalent.
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Q: Exercise 4 Write a recursive method that returns the power x". Test your method.
A: Please find the answer to the above questions below:
Write a recursive method that converts a decimal number into
a hex number as a string. The method header is
public static String dec2Hex(int value)
Write a test
its hex equivalent.
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- In Java code do the following:Write a method that accepts a String as an argument. The method should use recursion to display each individual character in the String:Write a recursive method that converts a decimal numberinto a binary number as a string. The method header ispublic static String dec2Bin(int value)Write a test program that prompts the user to enter a decimal number and displaysits binary equivalent.If your first name starts with a letter from A-J inclusively: Write a recursive method that takes a string as argument and determines if the string has more vowels than consonants. Test the method by asking the user to enter a string. Hint: Write your recursive method to first count vowels and consonants.
- 5. Palindrome Detector A palindrome is any word, phrase, or sentence that reads the same forward and backward. Here are some well-known palindromes: Able was I, ere I saw Elba A man, a plan, a canal, Panama Desserts, I stressed Kayak Write a boolean method that uses recursion to determine whether a string argument is a palindrome. The method should return true if the argument reads the same forward and backward. Demonstrate the method in a program.Write a recursive method that parses a binary number as astring into a decimal integer. The method header is public static int bin2Dec(String binaryString) Write a test program that prompts the user to enter a binary string and displaysits decimal equivalent.JAVA PROGRAM ASAP ************* THE PROGRAM MUST WORK IN HYPERGRADE AND PASS ALL THE TEST CASES.**************** Chapter 16. PC #3. String Reverser (page 1073) Write a recursive method that accepts a string as its argument and returns the string in reverse order. The method should return the same string if the string length is less than 2 characters long. The main program should ask the user to enter a string, which is then reversed using the above method and printed on the console. The program then prompts the user to enter another string. If the user enters QUIT (case insensitive), then exit the program. Test Case 1 Please enter a string for reversal or type QUIT to exit:\nabcdENTERReversed string: dcba\nPlease enter a string for reversal or type QUIT to exit:\nquitENTER Test Case 2 Please enter a string for reversal or type QUIT to exit:\naENTERReversed string: a\nPlease enter a string for reversal or type QUIT to exit:\nENTERReversed string: \nPlease enter a…
- T/F A Java main method uses the parameter (String[ ] variable) so that a user can run the program and supply“command-line” parameters. Since the parameter is a String array, however, the user does not have to supply anyparameters.Recursive Power MethodWrite a method called powCal that uses recursion to raise a number to a power. The method should accept two arguments: The first argument is the exponent and the second argument is the number to be raised (example” powCal(10,2) means 210). Assume that the exponent is a nonnegative integer. Demonstrate the method in a program called Recursive (This means that you need to write a program that has at least two methods: main and powCal. The powCal method is where you implement the requirements above and the main method is where you make a method call to demonstrate how your powCal method work).Create a class Recursion. It will have two static methods: removeX and countSubstring and write each function recursively. Recursion class removeX The removeX function will take a String as a parameter. It will return a new String that is the same as the original String, but with all “x” characters removed. This method will be case insensitive. countSubstring The countSubstring function will take two strings as parameters and will return an integer that is the count of how many times the substring (the second parameter) appears in the first string without overlapping with itself. This method will be case insensitive. For example: countSubstring(“catwoman loves cats”, “cat”) would return 2 countSubstring(“aaa nice”, “aa”) would return 1 because “aa” only appears once without overlapping itself. Create a Main class to test and run your Recursion class.
- Help me please: A palindrome is a string that reads the same both forward and backward. For example, the string madam is a palindrome. Write a program that uses a recursive function to check whether a string is a palindrome. Prompt the user for a string. If the string is a palindrome output a message in the following format: madam is a palindrome else Hello is not a palindrome Your program must contain a value-returning recursive function that returns true if the string is a palindrome and false otherwise. Do not use any global variables; use the appropriate parameters.Repeating String Write a method that takes a String and an int and return a String that is the original String repeated n times. For example, repeatString("Famous", 3) should return "FamousFamousFamous" The method signature should be public String repeatString(String str, int n) public String repeatString(String str, int n) { //declare a string variable //set up statements for repeating n number of times //create the appropriate return statement }1. Recursive Multiplication Write a recursive function that accepts two arguments into the parameters x and y. The function should return the value of x times y. Remember, multiplication can be performed as repeated addition as follows: 7* 4 = 4 + 4 + 4 +4 + 4 + 4 + 4
