Main.java:4: error: class perev is public, should be declared in a file named perev.java
public class perev {
^
Main.java:9: error: int cannot be dereferenced
String first1=first.toString();
^
Main.java:10: error: cannot find symbol
for(int i=0;i<first1.lengt;i++) {//???????? ?? ????????????
^
symbol: variable lengt
location: variable first1 of type String
Main.java:11: error: array required, but String found
if (first1[i]>='8') {
^
Main.java:17: error: cannot find symbol
for(int i=0;i<first1.length;i++) {//??????? ??????, ? ??????? ????? ?????????? ????????? ??????? ??????????
^
symbol: variable length
location: variable first1 of type String
Main.java:18: error: cannot find symbol
int lenght=first1.length-i-1;//??????? ??? ???????
^
symbol: variable length
location: variable first1 of type String
Main.java:20: error: array required, but String found
rezult[i]=first1[i]*8^lenght;
^
Main.java:23: error: cannot find symbol
for(int i=0;i<rezult.length;i++) {
^
symbol: variable rezult
location: class perev
Main.java:24: error: cannot find symbol
second+=Integer.valueOf(rezult[i]);
^
symbol: variable rezult
location: class perev
9 errors