How do you read a string backwards in Java?
How do you read a string backwards in Java?
- import java. util. Scanner;
- public class ReverseString. {
- public static void main(String[] args) {
- System. out. println(“Enter string to reverse:”);
- Scanner read = new Scanner(System. in); String str = read. nextLine();
- String reverse = “”;
- { reverse = reverse + str. charAt(i);
- }
How do you reverse a string output?
Strings can be reversed using slicing. To reverse a string, we simply create a slice that starts with the length of the string, and ends at index 0. The slice statement means start at string length, end at position 0, move with the step -1 (or one step backward).
How do you reverse a string in Java?
Reverse A String – Using Static Method. 1) String reverse (String s) is the static method This method contains the logic to reverse the string. 2) Create the object for the class ReverseofaString and call the static method with the object as rev.reverse (str)) by passing the given string. Reverse A String In Java. 1.
How to convert the input string into character array in Java?
Convert the input string into character array by using the toCharArray (): Convert the input string into character array by using the toCharArray () – built in method of the String Class. Then, scan the character array from both sides i.e from the start index (left) as well as from last index (right) simultaneously. 1.
How to get the reverse of a string in a while loop?
While loop iterates until the condition i>0 is false, i.e. if the length of the string is zero then cursor terminates the loop. 2) While loop prints the character of the string which is at the index (i-1) until i>0. Then we will get the reverse of a string.
How to convert a string to another string in Java?
This is done in the “for” loop by obtaining the characters of the original String individually from the end by using the “charAt” function of the String class and concatenating them to a new String by using the “+” operator. Another method which is also similar but uses the Java StringBuilder class instead:
