Implement a Java program to reverse a given string.Input FormatA single string.ConstraintsThe length of the string should not exceed (10^5) characters.Output FormatA string representing the reversed input string.Sample Input 0helloSample Output 0ollehContest ends in an hourSubmissions: 0Max Score: 5Difficulty: EasyRate This Challenge: More Java 151import java.io.*;2import java.util.*;34public class Solution {56 public static void main(String[] args) {7 /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */8 }9}
Question
Implement a Java program to reverse a given string.Input FormatA single string.ConstraintsThe length of the string should not exceed (10^5) characters.Output FormatA string representing the reversed input string.Sample Input 0helloSample Output 0ollehContest ends in an hourSubmissions: 0Max Score: 5Difficulty: EasyRate This Challenge: More Java 151import java.io.;2import java.util.;34public class Solution {56 public static void main(String[] args) {7 /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */8 }9}
Solution
Sure, here is a simple Java program that reverses a given string:
import java.io.*;
import java.util.*;
public class Solution {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String input = sc.nextLine();
String reversed = new StringBuilder(input).reverse().toString();
System.out.println(reversed);
}
}
Here's how it works:
-
We import the necessary classes.
java.util.Scanneris used to read the input from the user. -
In the
mainmethod, we create aScannerobject to read the input string. -
We read the input string using
sc.nextLine(). -
We create a
StringBuilderobject with the input string, reverse it using thereverse()method, and then convert it back to aStringusingtoString(). -
Finally, we print the reversed string using
System.out.println().
Similar Questions
. How do you reverse a string in Java?
How do you reverse a string in Java?There is no reverse() utility method in the String class. However, you can create a character array from the string and then iterate it from the end to the start. You can append the characters to a string builder and finally return the reversed string.
Fill in the missing code in the below sample code to reverse the given string.
Reverse a string using StringBuffer.Fill the code snippet provided, to perform the above.Code : Scanner sc=new Scanner(System.in); String str=sc.next(); //Store str using StringBuffer StringBuffer sb = ; ; //reverse using sb String reverse = ; //Convert StringBuffer to String System.out.println(reverse);
python program to reverse a string
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