There may be more than ONE $(1)$ correct answers. Select all that apply. Analyze the following code:

class Test $\{$

private double i;

public Test$($double i$)\{$

this.t$()$;

this.i $=$ i;

$\}$

public Test$()\{$

System.out.println$("$Default constructor"$)$;

this$(1)$;

$\}$

public void t$()\{$

System.out.println$("$Invoking t$")$;

$\}$

$\}$

Group of answer choices

this.i may be replaced by i$.$

this$(1)$ must be replaced by this$(1\mathrm{.}0).$

this.t$()$ may be replaced by t$().$

this$(1)$ must be called before System.out.println$("$Default constructor"$).$