How the following java statement works?

[itiger]

System.out.println(3.2 + " 4.5");

The value 3.2 is of what type (double or String). If it is 'double' then is it possible to typecast 'double to String'. If it String then please explain why it is String.

[horace1]

the 3.2 is a double and the " 4.5" is a String
the 3.2 is converted to a String and concatenated (the + operator) with the " 4.5" so when run prints

3.2 4.5

[itiger]

Is it true that all the things written inside the "System.out.pri nt()" is automatically gets converted into the String type.

[nathj]

Where possible Java will use the toString() method on the object in such cases. As Object has a toString() method on it this will be called if no custom version has been provided.