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I think your wondering why toString is called. When you called print or prinln on an object the toString method of that object is called.
Here is the doc


print

public void print(Object obj)

Print an object. The string produced by the String.valueOf(Object) method is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.

Parameters:
obj - The Object to be printed
See Also:
Object.toString()


here is the link to the doc
http://java.sun.com/j2se/1.3/docs/api/java/io/PrintStream.html
 
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class A {
public String toString () {
return "4";
}
}
class B extends A {
public String toString () {
return super.toString() + "3";
}
}
public class test {
public static void main(String[] args) {
System.out.println(new B());
}
}
Compilation succeeds and 43 is printed.
But why ?
Thanks !!
 
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return super.toString() + "3"

Tells the class to call the super (A) toString method, which returns "4". "4" + "3" = "43"
 
Greenhorn
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Thanks a lot!!!That's really helpful Inuka.....
 
Greenhorn
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Thanks!!!
 
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