Class Scanner looping issue

[Stev0]

The following code works until the loop is made back to the item one where it skips (as if the enter key was hit) to item two. This seems like a Scanner class issue. Maybe I am not using it properly.

************************** code********************
import java.util.Scanner;

public class Loop
{
// main method begins execution of Java application
public static void main( String args[] )
{
// create Scanner to obtain input from command window
Scanner input = new Scanner( System.in );

String item1, item2;
double n1, n2;

while (true)
{
System.out.print( "enter item one or stop to exit " );
item1 = input.nextLine();
if (item1.equalsIgnoreCase ("stop"))
{
System.out.printf( "You entered 'stop'.\n");
break;
}
System.out.printf( "enter item two " );
item2 = input.nextLine();
System.out.printf( "enter number one " );
n1 = input.nextDouble();

System.out.printf( "enter number two " ); // prompt for rate
n2 = input.nextDouble();

System.out.printf( "item one is %s\n", item1);
System.out.printf( "item two is:%s\n", item2);
System.out.printf( "number one is %.2f\n", n1);
System.out.printf( "number two is %.2f\n", n2);
}
}
}
************end code **********
This version not using class Scanner works.
************code version two ***
//import java.util.Scanner;
import java.io.*; //allows for input and output streams from the java IO package
import java.text.*;
public class Loop2
{
public static void main( String args[] )throws Exception
{
DataInput keyboard = new DataInputStream(System.in);

String item1, item2;
double n1, n2;

while (true)
{
System.out.print( "enter item one or stop to exit " );
item1 = keyboard.readLine();
//item1 = input.nextLine();
if (item1.equalsIgnoreCase ("stop"))
{
System.out.printf( "You entered 'stop'.\n");
break;
}
System.out.printf( "enter item two " );
item2 = keyboard.readLine();
//item2 = input.nextLine();
//System.out.printf( "enter number one " );
//n1 = input.nextDouble();

//System.out.printf( "enter number two " ); // prompt for rate
//n2 = input.nextDouble();

System.out.printf( "item one is %s\n", item1);
System.out.printf( "item two is:%s\n", item2);
//System.out.printf( "number one is %.2f\n", n1);
//System.out.printf( "number two is %.2f\n", n2);
}
}
}
**********end code version two *****
Any thought on the Scanner class skipping item one?
Thank you in advance.

[hardwired]

The nextLine method blocks execution. The other methods may not.

// So try replacing
n1 = input.nextDouble();
// with something like
n1 = Double.parseDouble(input.nextLine());