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public class Karl {
    private static String nose( String is){
...
    }
}

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karls-mac-mini:java karl$ java Karl
inferior

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karls-mac-mini:java karl$ javac Karl.java
Karl.java:7: error: incompatible types: int cannot be converted to Str
+ing
...
                                 ^
Note: Some messages have been simplified; recompile with -Xdiags:verbo
+se to get full output
1 error

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// ./lib/java/Karl.java                                               
+                                            
class Karl {
...
        return is;
    }
}

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#!/usr/bin/env perl                                                   
+                                            

...
say Karl->nose(1);

__END__

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karls-mac-mini:java karl$ ./java.pl
inferior
1