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println and printf have different behaviour?
Seems that System.out.println - does not permit %s things - gives error at compiling and printf - works ok.
That's right! Printf is short for Print Format, and Println is short for Print Line. %s stuff is called formatting, so that means that printf supports formatting and println doesn't. :)
Hope this helps, Alex
Piyush Patel17,253 Points
Yeah, printf() takes another arguments to print whatever you want to print. It actually formats the message and then prints. For example
System.out.printf("The error was: %s\n", iae.getMessage());
Here, we are telling the compiler to add the message from iae.getMessage() and replace '%s'.
Println only prints the line. Whatever you supply as argument will be printed.