char ch='A'; System.out.println(ch); //prints A ch++; System.out.println(ch); //prints B ch='0'; System.out.println(ch); //prints 0 ch++; System.out.println(ch); //prints 1 ch='9'; System.out.println(ch); //prints 9 ch++; System.out.println(ch); //prints :
Why did the ch++ make the program print a colon after the 9?
Answer
In ASCII character set : comes after 9, so when you increment you basically go to :.
Take a look at this:
