Using eclipse JRE 6.0 don't know what's wrong

Error message is as follows : Exception in thread "main" java.lang.Error: Unresolved compilation problems:
Scanner cannot be resolved to a type
Scanner cannot be resolved to a type


import java.util.scanner;
import java.io.*;

public class Areaofasquare2 {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input = new Scanner(System.in);
System.out.print("Hi, This is a program to calculate Area of a Square");
System.out.print("What is the length of the square");
double length = input.nextDouble();
System.out.print("What is the width of the square");
double width= input.nextDouble();
double area= width * length;
System.out.print("The area of the square is");
System.out.println (area);
// TODO Auto-generated method stub
}

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Quote:

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Originally Posted by ehren101

Error message is as follows : Exception in thread "main" java.lang.Error: Unresolved compilation problems:
Scanner cannot be resolved to a type
Scanner cannot be resolved to a type


import java.util.scanner;
import java.io.*;

public class Areaofasquare2 {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input = new Scanner(System.in);
System.out.print("Hi, This is a program to calculate Area of a Square");
System.out.print("What is the length of the square");
double length = input.nextDouble();
System.out.print("What is the width of the square");
double width= input.nextDouble();
double area= width * length;
System.out.print("The area of the square is");
System.out.println (area);
// TODO Auto-generated method stub
}

---

It's Scanner not scanner.

Changed the scanner to Scanner and it says

Exception in thread "main" java.lang.Error: Unresolved compilation problem:

at Areaofasquare2.main(Areaofasquare2.java:8)

Your class is unable to compile because there is no compiler to compile the class. JRE!=JDK. JRE is runtime environment but JDK is a development Kit. I am not sure if Eclipse JRE6.0 provides compiler or the development kit.