middleThree$("$Candy$")$ "and"

middleThree$("$and$")$ "and"

middleThree$("$solving$")$ "lvi"

$...$Save, Compile, Run $($ctrl$-$enter$)$

public String middleThree$($String str$)\{$

int midindex $=str.$ length $()\frac{?}{2}$;

$\}$

return str$.$substring$($midIndex $-1,$ midIndex $+2)$;

Expected

$\backslash$table$[[$middleThree$("$Candy$")$ "and","and",OK$],[$middleThree$("$and$")$ "and","and",OK$],[$middleThree$("$solving$")$ "Ivi","Ivi",OK$],[$middleThree$("$JavaFun$")$ "vaF","vaF",OK$],[$middleThree$("$Chocolate$")$ "col","col",OK$],[$middleThree$("12345")"234","234",$OK$],[$middleThree$("$abcdefg$")$ "cde","cde",OK$],[$other tests,,$x$