The string "dfbzzzzzzzzbbbccccdddeeexca" with all occurrences of "z" replaced by "o" would result in:
"dfbzzzzzzzzbbbccccdddeeexca"
"z"
"o"
"dfboooooooooobbccccdddeeexca"
So, the output of the replace method would be "dfboooooooooobbccccdddeeexca".
replace
당신은 어느 그룹입니까?