For Navigator, choose Window-Java Console to see what has been written to the console. For IE, first check the Java console option in the Internet Options-Advanced Tools tab. For direct keyboard input, the possibility of an exception must be handled. The following code formats decimal values to common North American formats. Java also supports more general formatting mechanisms which will display numbers in local format, e.g. it will show decimals as periods in North America, commas in Europe, etc. 5.
Brace brackets are optional there is a single level statement in the scope.
However, it is good style to always include brace brackets. Note that the syntax of the listed constructs is like C's. A number of examples follow. Java passes its primitive data types such as int, char, double, etc. by value while it passes arrays and Java objects by reference. To achieve a comparable result in Java, you would return the primitive as the return value and then raise a user-defined exception if the method failed.