Arrays - A Concise and Practical Introduction to Programming Algorithms in Java - page 97

We get the following output:
type:[[I@addbf1 5
type:[I@42e816 1
type:[I@9304b1 2
type:[I@190d11 3
type:[I@a90653 4
type:[I@de6ced 5

Observe that array ragged is printed as a bi-dimensional array of integers
using the “[[” notational convention: [[I@addbf1 . Similarly to Figure 4.1, we
can visualize ragged arrays as depicted in Figure 4.2.

4.6 Arrays of strings and main function

Strings of type String are not primitive types of Java. Though they can
be constructed from literals and are immutable, strings are considered as
special Java objects. Strings are not arrays of characters char . In other words,
String

= char [] .
These object notions shall be explained in the next chapter. We can also build
arrays of strings that are of type String [] , and functions may have string
arrays as arguments. Actually, we are already very familiar with the main
function of all Java programs that take as argument an array of strings:
class ProgramName
{
public static void main(String[ ] args)
{
...
}
}

For example, the following program lists all string arguments given in the line
command when invoking the java virtual machine on the bytecode:

Program 4.13 Writing to the output the arguments of the invoked main

function
class ParsingMain
{ public static void main( String [ ]

args )

for ( int i=0;i < args . length ; i++)
System . out . println ( i+ ":" +args [ i ] ) ;

}

}