Please Help
I got four compiler error messages.
I am not sure how to fix them.
String.java:9: incompatible types
found: java.lang.String
required: String
String greeting = "hello";
^
String.java:10: cannot resolve symbol
symbol : method length ()
location: class String
int len = greeting.length();
^
String.java:11: cannot resolve symbol
symbol : method charAt (int)
location: class String
char ch = greeting.charAt(1);
^
String.java:12: cannot resolve symbol
symbol : method substring (int,int)
location: class String
String sub = greeting.substring(2,4);
^
4 errors
// my code is below:
import java.io.*;
import java.lang.*;
public class String
{
public static void main (String [] args)
{
File file = new File("c:\\java\\string.txt");
String greeting = "hello";
int len = greeting.length();
char ch = greeting.charAt(1);
String sub = greeting.substring(2,4);
try
{
PrintWriter writer = new PrintWriter(new FileWriter(file));
writer.println("String greeting = " + greeting);
writer.println("int len = greeting.length() = " + len);
writer.println("char ch = greeting.charAt(1) = " + ch );
writer.println("String sub = greeting.substring(2,4) = " + sub);
System.out.println("String greeting = " + greeting);
System.out.println("int len = greeting.length() = " + len);
System.out.println("char ch = greeting.charAt(1) = " + ch );
System.out.println("String sub = greeting.substring(2,4) = " + sub);
writer.close();
}
catch(Exception e)
{ System.out.println( e ); }
}
}
