/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.stream.* ;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
String input
= "[12345, 65656, abc, 7.5, 12/12/2023],[65656,abc,7.5,12/12/2020],[76767,565656,abc,7.5,12/12/2020]"; .stream( input.split( "],\\[" ) /* Escape the openning bracket with double backslash. */ )
.
map( ( String s
) -> s.
replace( "[" ,
"" ).
replace( "\\]" ,
"" ) ) .
map( ( String s
) -> List.
of( s.
split( ", " ) ) ) .collect( Collectors.toUnmodifiableList() ); // .toList();
System.
out.
println( "listOfListsOfStrings = " + listOfListsOfStrings
); }
}
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listOfListsOfStrings = [[12345, 65656, abc, 7.5, 12/12/2023], [65656,abc,7.5,12/12/2020], [76767,565656,abc,7.5,12/12/2020]]]