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I am trying to extract an object from a JSText String in Java.
Regex that I am using (more accurate at this moment):
PJ\s?[=:]\s?\{(.*\s*\})
This is the demo:
https://regex101.com/r/hlkEUc/3
If you appreciate, at the end its the full code in single line form. This is captured without problems but in the middle of the text you can see the regex is trying capture the same object but it's broken due the line break.
Object to extract:
var PJ={yF:function(a,b){var c=a[0];a[0]=a[b%a.length];a[b]=c},It:function(a){a.reverse()},yp:function(a,b){a.splice(0,b)}};
I think you probably want this: PJ\s?[=:]\s?\{(.*[\r\n].*?)*?\};.
Regex
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Is there a way to clear multiple lines of text printed in the console with Java?
I'm trying to print 2 pictures made with text that are slightly different and replace each other in a loop. Thus, I want to print a multiline string and then clear the screen before printing the next string. However, I don't know how to clear the screen.
I've already tried using \r, but that doesn't work because it's multiple lines.
u/sellithy on reddit helped me out with this link
and the block of code that worked for me was
System.out.print("\033[H\033[2J");
System.out.flush();
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I have been working on a java algorithm and I want to improve it by allowing it to accept and process very large String values.
Could you suggest me any good ways of storing the input/output results. I've been thinking of writing it on a file with the readLine(), writeLine() methods? Is this a good technique ???
I recommend you to store all your string in a text file (if possible) and use BufferedReader utilities ...
here is the a link to how its done :
https://www.tutorialspoint.com/java/io/bufferedreader_readline.htm
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I have this code in Python:
if word[x:x+2] in twowords:
(twowords is a list). I can't figure out how to write in twowords in Java.
It looks like Python uses [x:y] to create a substring. You can use the substring method for that purpose, with the same parameters.
There is no in syntax in Java, but all Lists in Java support the contains method.
Try
if (twowords.contains(word.substring(x, x+2)))
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In a Text file I need to print only last character Is Possible
Example Input
Steve Jobs
Android
Apple
Core Java
Facebook(Assume Its in file name Sample)
Output
Input
droid
pple
book
Question is not clear. You can get the last charactor by
String str = "awesome";
System.out.println(str.charAt(str.length()-1));
Output
e
You can manipulate this in order to get what you expect.
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I'm debugging an application and realized that the debugger displays String[] in two different ways, namely these two: ['test'] and [test]. Those displayed in the second way work for my purpose and the other doesn't.
What's the difference between these two?
It sounds like in the first case, the single quote characters are part of the string. Try adding code to remove them.