Java:Replace specific word with other content unchanged2019 Community Moderator ElectionHow do I create a Java string from the contents of a file?How do I generate random integers within a specific range in Java?Regular expression to match a line that doesn't contain a word?How to negate specific word in regex?Is there a way to capture each group if multiple occurrences are matched?Greedy vs. Reluctant vs. Possessive QuantifiersThe usage of Pattern, Matcher, replaceTrouble trying to negate a word in Java regexNeed a way to print out lookahead portion of a regex pattern in java?Replace instead of append in java pattern matching?
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Java:Replace specific word with other content unchanged
2019 Community Moderator ElectionHow do I create a Java string from the contents of a file?How do I generate random integers within a specific range in Java?Regular expression to match a line that doesn't contain a word?How to negate specific word in regex?Is there a way to capture each group if multiple occurrences are matched?Greedy vs. Reluctant vs. Possessive QuantifiersThe usage of Pattern, Matcher, replaceTrouble trying to negate a word in Java regexNeed a way to print out lookahead portion of a regex pattern in java?Replace instead of append in java pattern matching?
I am new here and would you like to help me?
There may be lines like
389 392 "magnifyingglas" 1 0 4 392 6616 0 8529270
0 |
390 391 "armourstand" 1 0 6 391 6630 0 6800 0 |
391 391 "weaponrack" 1 0 6 390 6631 0 6800 0 |
I want to subtract 20 from the second number.
Like
390 391 "armourstand" 1 0 6 391 6630 0 6800 0 |
To
390 371 "armourstand" 1 0 6 391 6630 0 6800 0 |
But I don't know how to do it.
I may get the second number,then I don't know how to do with it.
There may be same numbers in this line,but I just want to replace the second number.
Thanks a lot.
============================================================================
update
Pattern p = Pattern.compile("^(\d+)\s+3(9)[0-2]\sS+\s+(1)\s+\d\s+6") ;
Matcher m = p.matcher("6621 391 "weaponrack" 1 0 6 371 6631 0 6800 0 |") ;
I want something like this
m.group(2).replace(7);
But I could find the similar method.
I see some documents say that we can use "$" to get the group reference, and it doesn't explain more.
Well, I read lines from text, and use "^(d+)s+3(7)0-21(s+ds+)6"
to find the matched line.
And then I need to replace the 39[0-2] to be 37[0-2].
It can be done by minus 20 or other ways which I don't care.
java regex regex-group
asked Mar 7 at 12:30
Sharon_XuSharon_Xu
12
add a comment |
I am new here and would you like to help me?
There may be lines like
389 392 "magnifyingglas" 1 0 4 392 6616 0 8529270
0 |
390 391 "armourstand" 1 0 6 391 6630 0 6800 0 |
391 391 "weaponrack" 1 0 6 390 6631 0 6800 0 |
I want to subtract 20 from the second number.
Like
390 391 "armourstand" 1 0 6 391 6630 0 6800 0 |
To
390 371 "armourstand" 1 0 6 391 6630 0 6800 0 |
But I don't know how to do it.
I may get the second number,then I don't know how to do with it.
There may be same numbers in this line,but I just want to replace the second number.
Thanks a lot.
============================================================================
update
Pattern p = Pattern.compile("^(\d+)\s+3(9)[0-2]\sS+\s+(1)\s+\d\s+6") ;
Matcher m = p.matcher("6621 391 "weaponrack" 1 0 6 371 6631 0 6800 0 |") ;
I want something like this
m.group(2).replace(7);
But I could find the similar method.
I see some documents say that we can use "$" to get the group reference, and it doesn't explain more.
Well, I read lines from text, and use "^(d+)s+3(7)0-21(s+ds+)6"
to find the matched line.
And then I need to replace the 39[0-2] to be 37[0-2].
It can be done by minus 20 or other ways which I don't care.
java regex regex-group
asked Mar 7 at 12:30
Sharon_XuSharon_Xu
12
You can add some code and contextualize your doubt for a better understanding from the community
– tomrlh
Mar 7 at 12:39
You just provide a better context of you are trying to do. I don't know what you are talking about. Do you always have 6 digits in your first number?
– Ctorres
Mar 7 at 13:16
add a comment |
I am new here and would you like to help me?
There may be lines like
389 392 "magnifyingglas" 1 0 4 392 6616 0 8529270
0 |
390 391 "armourstand" 1 0 6 391 6630 0 6800 0 |
391 391 "weaponrack" 1 0 6 390 6631 0 6800 0 |
I want to subtract 20 from the second number.
Like
390 391 "armourstand" 1 0 6 391 6630 0 6800 0 |
To
390 371 "armourstand" 1 0 6 391 6630 0 6800 0 |
But I don't know how to do it.
I may get the second number,then I don't know how to do with it.
There may be same numbers in this line,but I just want to replace the second number.
Thanks a lot.
============================================================================
update
Pattern p = Pattern.compile("^(\d+)\s+3(9)[0-2]\sS+\s+(1)\s+\d\s+6") ;
Matcher m = p.matcher("6621 391 "weaponrack" 1 0 6 371 6631 0 6800 0 |") ;
I want something like this
m.group(2).replace(7);
But I could find the similar method.
I see some documents say that we can use "$" to get the group reference, and it doesn't explain more.
Well, I read lines from text, and use "^(d+)s+3(7)0-21(s+ds+)6"
to find the matched line.
And then I need to replace the 39[0-2] to be 37[0-2].
It can be done by minus 20 or other ways which I don't care.
java regex regex-group
asked Mar 7 at 12:30
Sharon_XuSharon_Xu
12
I am new here and would you like to help me?
There may be lines like
389 392 "magnifyingglas" 1 0 4 392 6616 0 8529270
0 |
390 391 "armourstand" 1 0 6 391 6630 0 6800 0 |
391 391 "weaponrack" 1 0 6 390 6631 0 6800 0 |
I want to subtract 20 from the second number.
Like
390 391 "armourstand" 1 0 6 391 6630 0 6800 0 |
To
390 371 "armourstand" 1 0 6 391 6630 0 6800 0 |
But I don't know how to do it.
I may get the second number,then I don't know how to do with it.
There may be same numbers in this line,but I just want to replace the second number.
Thanks a lot.
============================================================================
update
Pattern p = Pattern.compile("^(\d+)\s+3(9)[0-2]\sS+\s+(1)\s+\d\s+6") ;
Matcher m = p.matcher("6621 391 "weaponrack" 1 0 6 371 6631 0 6800 0 |") ;
I want something like this
m.group(2).replace(7);
But I could find the similar method.
I see some documents say that we can use "$" to get the group reference, and it doesn't explain more.
Well, I read lines from text, and use "^(d+)s+3(7)0-21(s+ds+)6"
to find the matched line.
And then I need to replace the 39[0-2] to be 37[0-2].
It can be done by minus 20 or other ways which I don't care.
java regex regex-group
java regex regex-group
asked Mar 7 at 12:30
Sharon_XuSharon_Xu
12
asked Mar 7 at 12:30
Sharon_XuSharon_Xu
12
edited Mar 9 at 5:20
Sharon_Xu
asked Mar 7 at 12:30
Sharon_XuSharon_Xu
12
asked Mar 7 at 12:30
Sharon_XuSharon_Xu
12
asked Mar 7 at 12:30
Sharon_XuSharon_Xu
12
12
You can add some code and contextualize your doubt for a better understanding from the community
– tomrlh
Mar 7 at 12:39
You just provide a better context of you are trying to do. I don't know what you are talking about. Do you always have 6 digits in your first number?
– Ctorres
Mar 7 at 13:16
add a comment |
You can add some code and contextualize your doubt for a better understanding from the community
– tomrlh
Mar 7 at 12:39
You just provide a better context of you are trying to do. I don't know what you are talking about. Do you always have 6 digits in your first number?
– Ctorres
Mar 7 at 13:16
You can add some code and contextualize your doubt for a better understanding from the community
– tomrlh
Mar 7 at 12:39
You can add some code and contextualize your doubt for a better understanding from the community
– tomrlh
Mar 7 at 12:39
You just provide a better context of you are trying to do. I don't know what you are talking about. Do you always have 6 digits in your first number?
– Ctorres
Mar 7 at 13:16
You just provide a better context of you are trying to do. I don't know what you are talking about. Do you always have 6 digits in your first number?
– Ctorres
Mar 7 at 13:16
add a comment |
1 Answer
1
active
oldest
votes
Well,@Ctorres gives me an idea now.
When I get the matched line,put it in a char array.
First we skip the array first number,and blank spaces.
Then change the char'9' to be '7'.
But I think it's really complex.
answered Mar 7 at 13:39
Sharon_XuSharon_Xu
12
add a comment |
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votes
Well,@Ctorres gives me an idea now.
When I get the matched line,put it in a char array.
First we skip the array first number,and blank spaces.
Then change the char'9' to be '7'.
But I think it's really complex.
answered Mar 7 at 13:39
Sharon_XuSharon_Xu
12
add a comment |
Well,@Ctorres gives me an idea now.
When I get the matched line,put it in a char array.
First we skip the array first number,and blank spaces.
Then change the char'9' to be '7'.
But I think it's really complex.
answered Mar 7 at 13:39
Sharon_XuSharon_Xu
12
add a comment |
Well,@Ctorres gives me an idea now.
When I get the matched line,put it in a char array.
First we skip the array first number,and blank spaces.
Then change the char'9' to be '7'.
But I think it's really complex.
answered Mar 7 at 13:39
Sharon_XuSharon_Xu
12
Well,@Ctorres gives me an idea now.
When I get the matched line,put it in a char array.
First we skip the array first number,and blank spaces.
Then change the char'9' to be '7'.
But I think it's really complex.
answered Mar 7 at 13:39
Sharon_XuSharon_Xu
12
answered Mar 7 at 13:39
Sharon_XuSharon_Xu
12
answered Mar 7 at 13:39
Sharon_XuSharon_Xu
12
answered Mar 7 at 13:39
Sharon_XuSharon_Xu
12
12
add a comment |
add a comment |
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You can add some code and contextualize your doubt for a better understanding from the community
– tomrlh
Mar 7 at 12:39
You just provide a better context of you are trying to do. I don't know what you are talking about. Do you always have 6 digits in your first number?
– Ctorres
Mar 7 at 13:16