Remove Junk/Special Chars in a String - Java Interview Questions -2

[@marlynj7930]

Naveen--You need not say during the end of the video---subscibe,share,like!!!Needless to say that!!We have all loved your videos and will be loving your videos--When we love then subscription,liking,sharing is unimaginable!Thanks Naveen!!!

[@lisazhou7776]

Naveen, I like your videos very much. Your explanation is amazing, simple and clear. Thank you very much!

[@sowjanyadarbha8403]

Thanq so much Naveen for the clear explanation. Your videos brought me confidence in Java

[@sachin21890]

Hi Naveen, How are we able to change the original values of strings 's' and 's1' here by using replaceAll() function ? aren't they immutable? I'm confused here

[@ravijharox01]

Run, below code. You will be able to find out the difference. String str = "!@#$%^&*()_+}{|?>::

[@coolsaty007]

If you observe carefully what he has done is "s=s.replaceAll()". which means he is assigning the new value to s. Now "s" is pointing to a new string object.

[@mdrajeshwar1]

@@ravijharox01 I am trying with this solution String s = "拉杰什瓦尔 Welcome 拉杰什瓦尔 220120"; // regular expression [^a-zA-Z0-9] String Removed =s.replaceAll("[^a-zA-Z0-9]", " "); System.out.println(Removed); Out put is Welcome 220120 perfectly working only we have assigned to a new string variable

[@ritumehta1280]

Hi Naveen, you are doing a great job. All of your videos are really helpful. The only thing if you could is please increase the font of the text for your upcoming videos! Thanks! :)

[@pratimadaswante4117]

Hi sir in this program when I have enter backslash(\) then that slash remains there instead of removing it🙄

[@shafiqurrahman5809]

Hi, Naveen if String is immutable how are we able to change it? Please clarify why in this case String is mutable?

[@vanajabethina5991]

Me as same doubt na

[@selectiveeagle4040]

same here

[@shilpajain4061]

HI , Please help me fix the below error: Error occurred during initialization of boot layer java.lang.module.FindException: Error reading module: C:\Users\shilpa.jain\eclipse-workspace\OOPS\bin Caused by: java.lang.module.InvalidModuleDescriptorException: MyCar.class found in top-level directory

[@mayankbhatkar4487]

If we want to allow Japanese text and also restrict special character, how can we achieve that?

[@nikhiltillu6201]

Hi Naveen, You said not to use Ascii codes, can you let me know the reason for it ? The concept to use a regex was good, but its removing the space too. With the help of ascii values we can include the spaces too. int len = s.length(); String n = ""; char ch; int ascii; for (int i = 0; i < len; i++) { ch = s.charAt(i); ascii = (int)ch; if((ascii >= 65 && ascii = 97 && ascii

[@croonmelody7097]

use regex alongwith space like [^ a-zA-Z0-9]

[@passgreenearth]

Hi Naveen, Chinese character is not saving in my eclipse, please help.

[@chanduyagnesh5501]

if we donot use inbuilt methods then how to do that also explain sir

[@ujjwalverma7787]

sir, please help me i really confuse between them what is the difference between the "array.length and array.length()" some time array.length will work and some time array.length() will work. is there is any rules for is for using it? with String arr.length() will work but when we use an integer type, its work with array.length.

[@vikaskumar-qr5tj]

length() is method present in object class to calculate length of string but length is a variable which returns size of array.....

[@achintyasett9621]

Hi Naveen, Thanks for this helpful video. I would like to add that a shorter regex [^\w\d] will also work in the given scenario.

[@Deepak-wm4qg]

Bro, ewr screen is not visible in 360p also Thts y, low traffic in ewr channel, pls remove that side bar, so that it could be seen clearly

[@nitingupta82]

Awesome!! Thank You Very Much!!

[@chetanachavan6116]

str=str.replaceAll("[^ a-zA-Z0-9]",""); by using this we can keep space as it is in between 2 words. but what if more than space 1 space I want to remove from 2 words.

[@salehashamim7803]

Please someone write the particular replaceAll line. It is not visible on my mobile.

[@kapilrana2361]

Hi Naveen, Nice explanation. One query, If the string is immutable then why replace method is there. I can change the value using the replace method. public class RemoveJunkCharacter { public static String s = "kapil"; public static void main(String args[]) { s= s.replace('l', 'i'); s=s.replace('p', 'i'); System.out.println(s); } } Output: kaiii. Please suggest, I think I am getting something wrong.

[@bharathkoneru4008]

For every operation performed on the string, a new String object is created with those changes. Here, first you declared String s='kapil' string var s is referring to String object which has value 'kapil' Now on using replace method on this String obj. a new string object is created. s.replace('l','i'); Here you are assigning the entire right hand side expression to the string variable s=s.replace('l','i') which was initially referring to string obj kapil. On this assignment this s starts referring to this newly created object.

[@ajayparjapati0902]

sir how can print the string and also print the chrctr int last like= hello@#@#@ like this

[@anithas5014]

Hi Naveen I am getting the output as ^Testing123 Console output is generating with exclude symbol

[@sureshm2047]

Hi Naveen wanted to join online training from you!! Is there any chance for us?

[@raghureddy5712]

thank you Naveen bro and How to give spaces?

[@ravijharox01]

str = str.replaceAll("[^a-zA-Z0-9\\s]", "");

[@nexar2811]

Thank You Boss

[@kamleshlohar]

thanks for better concepts

[@azimadayani2379]

Didn’t get replace all option

[@prabeshkumarbhagat2989]

Thanks Naveen.

[@maarcoo97]

Thanks!

[@sridevireddy1371]

Thank you Naveen

[@oopsididitagain8572]

Thank you

[@deepakjava3506]

thank you so much.

[@ramanujamsunkari946]

Please increase font size.... It is not clear to watchable

[@samalmaleesha283]

lifesaver

[@umeshnaik844]

how to retain space

[@mariabajwa8632]

thank u

[@VandanaYadav-yp9zv]

Hi Naveen FIrst of all Thanks for all the great work you are doing . one observation i have regarding replaceALL() method is that String samplestring = "^^^^^^van^^^^^^^^^^yad^^^^^^^^^^^^^^^^^^^^"; samplestring = samplestring.replaceAll("[^a-zA-z]", ""); System.out.println("samplestring after removing junk:"+samplestring); It dosent replace ^ sign from the sample string.

[@ravijharox01]

String samplestring = "^^^^^^van^^^^^^^^^^yad^^^^^^^^^^^^^^^^^^^^"; samplestring = samplestring.replaceAll("[^a-zA-Z]", ""); System.out.println("samplestring after removing junk:" + samplestring); Try above code, it will work. You used 'a-zA-z' instead of 'a-zA-Z'

[@VandanaYadav-yp9zv]

Thanks Ravi! it worked now!

[@salehashamim7803]

Java code to remove double quotes string in excel.

[@manikandand2541]

wowwwwwww

[@mdsabirali_Keep_learning]

⭐⭐⭐⭐⭐

[@MBindu-kc2nj]

Thank You