Basic ThisDemo flow of Control Understanding
Ok ive got two classes, the first being television.java;
public class Television
public int channel;
public int volume;
public Television()
this(4,10);
System.out.println("Inside no-arg constructor");
public Television(int c)
this(c, 10);
System.out.println("Inside one-arg constructor");
public Television(int c, int v)
System.out.println("Inside two-arg constructor");
channel = c;
volume = v;
the second is ThisDemo.java;
public class ThisDemo
public static void main(String [] args)
System.out.println("Instantiating first television");
Television t1 = new Television();
System.out.println(t1.volume + " " + t1.channel);
int channel = 206;
System.out.println("Instantiating second television");
Television t2 = new Television(channel);
System.out.println(t2.volume + " " + t2.channel);
int volume = 7;
System.out.println("Instantiating third television");
Television t3 = new Television(channel, volume);
System.out.println(t3.volume + " " + t3.channel);
can someone explain to me why the first three lines of output are:
Instantiating first television
Inside two-arg constructor
Inside no-arg constructor
10 4
is it because withing the Television() constructor it says, this(4,10) so it jumps from the print out for the two arg constructor then back to the no-arg constructor. I would really like to get my head around this. Thanks. Richard
is it because withing the Television() constructor it says, this(4,10) so it jumps
from the print out for the two arg constructor then back to the no-arg
constructor.Yes.
Remember you call this(4, 10) before you print the fact that you are in the
no argument constructor. (And, of course, you have to do this.)
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