Thread: What wrong with my code

class Simple
{  
public static void main(String args[])
{
//this is start
String str = "1944593030303030ff0000148b010600";
int length = str.length();
int i = length / 2;
int i2 = 0;
String substring = str.substring(0, i);
str = str.substring(i, length);
String replaceAll = substring.replaceAll("[^\\d.]", "");
str = str.replaceAll("[^\\d.]", "");
long parseLong = Long.parseLong(replaceAll);
long parseLong2 = Long.parseLong(str);
str = new StringBuilder();
str.append(((parseLong + parseLong2) + ((long) length)) / 2);
str.append("");
str = str.toString();    //error begin from here
length = str.length();
if (length > 8) {
i2 = length - 8;
}
replaceAll = "QW5RE45ReVvcx40gfG8BGHTkKLlRr";
while (i2 < length) {
int i3 = i2 + 1;
i2 = Integer.parseInt(str.substring(i2, i3));
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append(str2);
stringBuilder.append(replaceAll.substring(i2, i2 + 1));
str2 = stringBuilder.toString();
stringBuilder = new StringBuilder();
stringBuilder.append(str2);
i2 *= 2;
stringBuilder.append(replaceAll.substring(i2, i2 + 1));
str2 = stringBuilder.toString();
i2 = i3;
}
return str2;
System.out.println("sucess");  
//this is end
}  
}

Output
Compile by: javac Simple.java
52.105/Simple.java:19: error: ';' expected
str = new StringBuilder("") ^
1 error

Why do you think there is anything wrong with the code?
If there are error messages, copy the full text and paste it here.
If the output is wrong, post it and explain.

Please edit your post and wrap your code with code tags:

[code]
**YOUR CODE GOES HERE**
[/code]

to get highlighting and preserve formatting.

What happened to the code's formatting? None of the statements are indented. Indentation is important to show the nesting level of statements.
Look at posted code in other threads on the forum for examples.
Please post code with proper indentations.

52.105/Simple.java:19: error: ';' expected
str = new StringBuilder("") ^

The compiler is saying that it expects a ; at the end of the statement. Statements need to end with a ;
Add a ; where the compiler is saying it should be placed.

Also please post the code (properly formatted) that had the posted error message. The posted code does not include a statement with StringBuilder("") shown in the error message. Note the "" argument

I think your statement below may be causing a problem, it is assigning a 'Stringbuilder' object to a 'String' ... you also have other errors around the 'str2' statements further down in your code

str = new StringBuilder();

True. But the OP has lots of problems. For example, the following does not make sense whether str is
a String or an instance of StringBuilder.

str = str.toString(); //error begin from here

The OP needs to clean up the code, correct the indents. and show us all the error messages.

Regards,
Jim