$($T or F$)$ All of the following expressions result in true if a string myS contains the prefix "Java" $($For example: myS holds the string "Java Coffee" or "Javad" or "Java is awesome"$)$:

$($myS$.$startsWith$("$Java$"))$

$($myS$.$indexof$("$Java$")==0)$

$($mys$.$substring $(0,4).$ equals $("$Java$")$