g S and outputs its reverse For example the reverse of ‘pots&pans’ would be ‘snap&stop’ programming language: java Need full code w
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Write a short recursive Java Method that takes a character
string S and outputs its reverse
For example the reverse of ‘pots&pans’ would be ‘snap&stop’
Need full code with explanation
Step by step
Solved in 2 steps with 1 images
- import java.util.Scanner; public class LabProgram { // Recursive method to reverse a string public static String reverseString(String str) { // Base case: if the string is empty or has only one character, return the string as is if (str.isEmpty() || str.length() == 1) { return str; } else { // Recursive step: move the first character to the end and reverse the remaining substring return reverseString(str.substring(1)) + str.charAt(0); } } public static void main(String[] args) { Scanner scnr = new Scanner(System.in); String input, result; input = scnr.nextLine(); // Call the reverseString() method result = reverseString(input); // Output the result System.out.printf("Reverse of \"%s\" is \"%s\".%n", input, result); }}Write code in Java: -Must be recursive import java.util.*; import java.lang.*; import java.io.*; //*Analysis goes here* //*Design goes here* class AllPermutation { public static void displayPermutation(String s) { //*Code goes here* } public static void displayPermutation(String s1, String s2) { //*Code goes here* } } //*Driver class should not be changed* class DriverMain { public static void main(String args[]) { Scanner input = new Scanner(System.in); AllPermutation.displayPermutation(input.nextLine()); } }import java.util.Scanner; public class LabProgram { // Recursive method to draw the triangle public static void drawTriangle(int baseLength, int currentLength) { if (currentLength <= 0) { return; // Base case: stop when currentLength is 0 or negative } // Calculate the number of spaces needed for formatting int spaces = (baseLength - currentLength) / 2; if (currentLength == baseLength) { // If it's the first line, don't output spaces before the first '*' System.out.println("*".repeat(currentLength) + " "); } else { // Output spaces and asterisks System.out.println(" ".repeat(spaces) + "*".repeat(currentLength) + " "); } // Recursively call drawTriangle with the reduced currentLength drawTriangle(baseLength, currentLength - 2); } public static void drawTriangle(int baseLength) { drawTriangle(baseLength, baseLength); } public static…
- Write a Non tail recursion and a tail recursion method in Java with a test class that does the following: The factorial of a positive integer n —which we denote as n!—is the product of n and the factorial of n 1. The factorial of 0 is 1. Write two different recursive methods in Java that each return the factorial of n. Please and Thank youimport java.util.Scanner; public class LabProgram { // Recursive method to draw the triangle public static void drawTriangle(int baseLength, int currentLength) { if (currentLength <= 0) { return; // Base case: stop when currentLength is 0 or negative } // Calculate the number of spaces needed for formatting int spaces = (baseLength - currentLength) / 2; if (currentLength == baseLength) { // If it's the first line, don't output spaces before the first '*' System.out.println(" ".repeat(spaces) + "*".repeat(currentLength)); } else { // Output spaces and asterisks System.out.println(" ".repeat(spaces) + "*".repeat(currentLength)); } // Recursively call drawTriangle with the reduced currentLength drawTriangle(baseLength, currentLength - 2); } public static void drawTriangle(int baseLength) { drawTriangle(baseLength, baseLength); } public…Write a recursive method in java that returns a string that contains the octal representation of a positive integer. Test your method. Hint: An octal number is the base-8 number system, and uses the digits 0 to 7. For example, the number 12 can be converted to octal number as follows: Divide by 8, the remainder represents the first digit so 12/8 = 1 and the remainder is 4 so the first digit is 4. The quotient is 1. Then we divide 1 over 8 we get zero and the remainder is 1. The second digit is 1 and we stop. The equivalent octal number for 12 is 14.
- Write a recursive Java method that calculates the sum of n positive integer numbers. The math function is: f(n) = 1 + 2 + 3 + … + n. Jack, Peter and John were exploring a tunnel which allows only one person to pass through. Jack entered the tunnel first, followed by Peter. John entered the tunnel the last. The tunnel has a dead end. So the team has to turn back and retrieve from the tunnel one by one. Write a Java program based on a suitable data structure to simulate this process.Define a static recursive method that returns the arabic integer equivalent of a roman numeral given to the method as a string argument. java programIn Java trace the table for a while loop public class Main { public static void main(String[] args) { // Question 2 j = 30; x=5; for (int i=1;i<=2;i++) { while (j > 20) { j=j-x*i; ++x; }// end of while }// end of for j x i j<=2 j>20
- Please write a JAVA code with MethodsWrite a recursive method in java public static long numPaths(int r, int c) which can solve the following scenario: a checker is placed on a checkerboard. What are the fewest moves to get to the upper left corner(0,0)? You can only move sideways or vertically. No diagonal moves. Once you have that calculation, how many different ways are there to get to the upper left corner? this is my code but I am getting stock overflow, I'm not reaching my base case. public static long numPaths(int r, int c) { //base case if (r==0 && c==0 || r==0 || c==0) return 1; else { return numPaths(r, c--) + numPaths(r--, c); } }Can you please give an example of a Java code using the recursion method to call a method named "sum" which will multiply numbers from 1 to the input number: Example, the sum method should take a number say 20 and output product of: 20*19*18*17*.....*1.