Exception in thread "main" java.util.MissingFormatArgumentException: Format specifier '%s'
at java.base/java.util.Formatter.format(Formatter.java:2672)
at java.base/java.io.PrintStream.format(PrintStream.java:1053)
at java.base/java.io.PrintStream.printf(PrintStream.java:949)
at Ideone.main(Main.java:12)