Computing length of String in Java | Java Programs | Strings in Java | ABC

[@ABCforTechnologyTraining]

Learn from Leaders, Learn from ABC. Watch our latest technical videos in your language: For Hindi:- bit.ly/2TRuGVP For Kannada:- bit.ly/31NH63M For Telugu:- bit.ly/2MuYRRP For Tamil:- bit.ly/2Num5Hz

[@ashishranjan5805]

class Withoutwhileloop { public static void main(String args[]) { String a="D r a g o n"; char b[]=a.toCharArray(); int count=0; for(char e :b) { Count=count+1 } System.out.print(count); } }

[@coolgirlsharu]

Thank you sir recently 2 days back I faced these question in technical interview ,to compute the length of the string with out using inbuilt methods....but I was unable to do on that time

[@ABCforTechnologyTraining]

We are glad that these videos are helping out the student community, Please do subscribe the channel for more updates on the interview questions. x.co/fresher

[@balukrishna3581]

@@ABCforTechnologyTraining can we use charAt rather than sending the data into array

[@JahidKhan-tj3nf]

Nice teaching techniques

[@praanthchinna8266]

For example without using atleast one inbuilt methods ...... that means concat(),toCharArry() without using these two how count length of string sir.....

[@kiranbarhate394]

Sir ap bahut accha teach karte ho

[@ABCforTechnologyTraining]

We are delighted to be of some service to the student community. Happy learning, Kiran!

[@ayushkssk]

Why use System.out.printf("%d,x.length()); Is it write...?.. I think it's c Syntex. printf or %d

[@kolamouni6427]

Sir, when we use x.concat("/0") Whether null character is placed only in the last... Why can't it be in the middle or starting itself. Since concatenation can be done anywhere

[@kiranbarhate394]

Sir ap bahut acha reach karte ho

[@ABCforTechnologyTraining]

We appreciate your response. Thank you, Kiran. Kindly Like, Share and Subscribe. Happy Coding!

[@surya_computers]

Sir you are using System.out.printf(); printf is allowed in java language.

[@ABCforTechnologyTraining]

This is precisely the reason for us to have included a DISCLAIMER. printf() method certainly exists even in Java. Watch the video in the link provided and you would get your answer kzbin.info/www/bejne/hIS8koull6lje6s

[@praanthchinna8266]

Sir, "\0" means null .....or what? Suppose concat any special or any other char like "#" now loop traverses like String x =" ABC for JAVA "; X= x.concat("#"); char y [ ] = x . toCharArray( ) ; Int count =0; Int i = 0; while ( y [i] ! = '#' ) { count + +; i + + ; } System. out.print(count) ; }

[@birajaprasad]

class St{ public static void main(String[]args){ String x="hello"; x=x.concat("4"); char y[]=x.toCharArray(); int i=0; while(y[i]!='4'){ i++; } System.out.println(i); } } U can concat any array ,no need to add '\0' //String str="Hello"; //System.out.println(str.length()); for built in method

[@MasterWingman]

what is the name of this cool music?

[@deeptijha4850]

hello sir, in previous video u say that how we compute the length of the string by not using inbuilt library function but in this video u will use the inbuilt function that is concat(). why?

[@ABCforTechnologyTraining]

Your concern is justified. Strings are objects in Java and they do not permit direct access to the individual characters (as in the case of arrays). Please note it is impossible to compute the length of a String in Java without using any in-built method. So, we can re-frame the question the way it will be asked in interview process like this - "Compute the length of a String without using length() in-built method", precisely.

[@deeptijha4850]

@@ABCforTechnologyTraining means in the place of length() we use concat() ?and it is necessary to use inbuilt method only through we compute the length of a string right sir?

[@sahithmanchi3527]

@@deeptijha4850 the use of length() is to show how many characters are present in the given string which is also called as length of the string, but Concat() is used to append the null character for the given string. hope you understand the difference and in the video sir had clearly precised that you will be asked in interviews like without using "length()" inbuilt method.

[@HumeiraShaik]

Do we include \0 in double quotes in JAVA ???

[@ashrafulalan6440]

thank you sir

[@ABCforTechnologyTraining]

We all put in a lot of effort; thank you for acknowledging our hard work. Happy learning, ashraful alan!

[@sumitkaith3502]

in java printf is using....? and %d also....?

[@deeptijha4850]

hello sir,why we write here printf instead of println?

[@ABCforTechnologyTraining]

It is the choice of the programmer to use any of the print facilities provided by a programming language. Also printf() method will permit format specifiers such as %d, %c, %f, etc which is not permitted in the case of println(). Such technical aspirants who come from "C language" background might find it easy to understand the Java code if minimal changes are performed. Nevertheless, you will obtain the same output by using println() as well without format specifiers.

[@deeptijha4850]

@@ABCforTechnologyTraining ok i got it sir thanq sir for clear my doubts.

[@LIN30Sec]

print() is only for that line println() is change the line

[@dhachanamurthydhachanamurt8447]

😎😎😎😎

[@ABCforTechnologyTraining]

Happy coding! 😊😊😊

[@annapurnatgongadi9988]

y printf is used in java

[@ABCforTechnologyTraining]

This is precisely the reason for us to have included a DISCLAIMER. printf() method certainly exists even in Java. Watch the video in the link provided and you would get your answer kzbin.info/www/bejne/hIS8koull6lje6s

[@rajatbatra2256]

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: Index 5 out of bounds for length 5 at introduction/strings.StringLength.main(StringLength.java:22) please do resolve this error.

[@rajatbatra2256]

my code- package strings; import java.util.*; import java.util.Arrays; public class StringLength { public static void main(String[] args) { String x = "rajat"; x.concat("\0"); // adding null character; char y[]= x.toCharArray(); // converting to array; int count=0; int i=0; while(y[i]!='\0') { ++count; ++i; } System.out.printf("%d",count); //may also use x.length(); or y.length; } }