Not able to print very large strings in java (neither in Eclipse nor in cmd)

问题

I am working with very large strings whose length range from 0 to 2*10^5. When I try to print the strings on the console or using command line via System.out.println, nothing shows up. Only strings/substrings with 4096 characters show up. Also, I get no errors.

I also tried to print the characters one at a time using System.out.print(chararray[i]) but to no avail.

I even tried tried to use the below but it did not work.

StringWriter stringWriter = new StringWriter();    
BufferedWriter bufferedWriter = new BufferedWriter(stringWriter);    
bufferedWriter.write(str);   //does not display       
StringBuilder sb = new StringBuilder(str);    
System.out.println(sb);   //does not display

Displaying is important here since I am submitting my program on HackerRank and my program does not pass the test case due to this issue.

Can anyone please help?

Note: I know the strings are being stored properly since I was able to verify their lengths using str.length();

回答1:

By default, Eclipse limits the amount of text in the console output window. So if you are running a program which produces a lot of output, the Console will only display the last n lines and you lose the rest.

Here is a tip which will allow you to have unlimited output in the console:

• Go to Window > Preferences > Run/Debug > Console
• Uncheck "Limit Console Output" (Alternatively you can increase the Console buffer size.)

Credits

回答2:

Try dividing the string into multiple chunks and then write to a text file. You can refer below link to divide the string : How to split a string into equal parts and store it in a string array

来源：https://stackoverflow.com/questions/34535561/not-able-to-print-very-large-strings-in-java-neither-in-eclipse-nor-in-cmd