How to Reverse a String in Java

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Reversing a String in Java.
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[mohamedwasim]

Fun fact: everyone raised their volume in starting of the video😄

[SmartProgramming]

simple and good 👍👍 but bit complicated without sound

[michealmclaughlin]

Excellent. Intuitive commenting meant the sound was not required for me personally. Thank you!

[plebblanco]

Thank you! Great video made it simple and easy for me to understand.

[limsoyoun]

Great job!  Thank you for the posting.

[RajeshR-ypsy]

Very good and simple easy to understand. Please use voice

[AmitAswar]

Simple logic

//String reverse
package abc;
import java.util.*;
public class abc1 {


public static void main(String args[]){

Scanner sc=new Scanner(System.in);
System.out.println("Enter a String");
String str=sc.nextLine();
StringBuffer sb=new StringBuffer(str);
System.out.println("string rev is "+sb.reverse());

}
}

[IQ]

why did you make :original=sc.nextLine?i mean sc is object ivoking the method nextline but why and how is ti possible to make it as an object for the string??your answer will help me

[TT-xgqd]

Easy method to rev a string please correct me if it is wrong

INPUT = ABCD
OUTPUT = DCBA

let's do a code

Class ReverseString {
public static void main(sttring [] args)
{
String word="ABCD";
String word2="";
for(i=word.length()-1; i>=0; i--) // here we take that length of a word is 4 so we take it as -1 now 4-1=>3, now that i>=0 is that loop continue until it satisfies the condition now,
{
word2 = word2 + word.charAT(i);
}
System.out.println(word2);
}
}
o/p:-
DCBA

That is like to be length of word 4-1=3 that means it pointed position 3, so that A will be as in position 0 like A(0), B(1), C(2)D(3) so first the condition I>=0 will be satisfy the condition by i-- so it run untill the loop satisfies like 3, 2, 1, 0 as D, C, B, A 👍👍

[girishgowda]

Hey its emergency
Input = knowledge
Output = ledgewonk

How to get this please replay any onr

[jaydobariya]

if String in java is immutable then how can it possible to change the initial value of s2

[hemanthkumar-gxjn]

sometimes why we use
String h=""

please answer

[darkwarrior]

import java.util.*;
public class Main
{
public static void main(String[] args) {
System.out.println("Enter the string");
Scanner s=new Scanner(System.in);
String str=s.nextLine();
String rev="";
int i;
int len=str.length();
for( i=len-1;i>=0;i--);
{
rev=rev+str.charAt(i);
}
}
}
sir is there any error in my program its not executing sir

[sushiltiwari]

Hello sir I want ask one thing like if I have some string I want to retract 5 and 6 place cahracter or digit from that how is it possible

Consider
String st="14231332343344"
And I want to extract 1 st 3 digit diffrent and 2 3 digit different
A=142
B=313

Could you pls help

[rakeshbashettifilmwriter]

what packages should write for this program

[musicallycreation]

please upload a video for reversing array without using scanner case plssss help me

[memelordcameron]

Why wont the first work?? Also how are you using the scanner, i see you never imported it

[amitdubey]

count the number of occurrences of a character in a string using java .sir can you explain this program in simple way.

[abhishekmanral]

you should put your laptop on power!! gives better performance..

[haneeshan]

String reverse without logic please reply sir