Reverse each line of the inputs in java

Question

My code cannot reverse each line of the input. It should be look like: Input:

abc
def
ghi

Output:

cba
fed
ihg

How to modify it?

import java.*;
import java.util.Scanner;

public class Reverse {
    public static void main(String[]args) {
        Scanner in = new Scanner(System.in);
        String s = new String();

        while (in.hasNextLine()) {
            s += in.nextLine() + "\n";
        }

        StringBuffer r = new StringBuffer(s);
        r = r.reverse();
        System.out.println(r);
    }
}

If you're going to post your code, please make it compilable. — Savior, Apr 05 '16 at 01:22
This question has been asked before http://stackoverflow.com/questions/7569335/reverse-a-string-in-java — LearningPhase, Apr 05 '16 at 01:22

score 0 · Accepted Answer · answered Apr 05 '16 at 01:31

You are reversing the characters in the string. You need to reverse the characters on each line.

Scanner in = new Scanner(System.in);
String s = new String();

while(in.hasNextLine()){
     StringBuffer buf = new StringBuffer(in.nextLine());
     s += buf.reverse() + "\n";
}
System.out.println(s);

Reverse each line of the inputs in java

1 Answers1