java.util.Scanner problem

[sinatra roger]

import java.util.Scanner;

 class RemoveWord
{
	public static void main(String[] args)
	{
		String subStr;	//variable to hold the word to be removed.
		int numOfWords=0;


		Scanner in = new Scanner(System.in);


		System.out.println("PLEASE ENTER THE WORD TO BE REMOVED");
		subStr = in.nextLine();


		System.out.println("PLEASE ENTER THE NUMBER OF WORDS IN THE WORD ARRAY");
		numOfWords = in.nextInt();
		//System.out.println(numOfWords);

		if(numOfWords > 0) //validates input
		{

			String[] stringCollection = new String[numOfWords];
			String[] finalArray = new String[numOfWords];


			System.out.println("ENTER THE WORDS ONE BY ONE");
			in.nextLine();                         //<<---------------------------- see this line----------------------------------------->>


			for(int i=0; i<numOfWords;i++)
			{
				int k=i+1;
				System.out.println("ENTER WORD NUMBER "+k+" >>>");
				stringCollection[i] = in.nextLine();
			//	System.out.println(i);
			}

	 		finalArray = remove(stringCollection,subStr);

			System.out.println("\n\nOUTPUT:");
			System.out.print("[");	//square bracket at beginning of output
			for(String s:finalArray)
			{
					System.out.print("\"");
				System.out.print(s+"\",");
			}

			System.out.print("]");	//square bracket at end of output

		}

		else
		System.out.println("PLEASE ENTER INTEGER FOR NUMBER OF WORDS");

	}



	public static String[] remove(String[] stringCollection,String subStr)
	{
		int finalIndex = 0;
		boolean change = false;
		int index1=0,index2=0;
		String curString;
		String tempString="";
		String[] finalArray = new String[stringCollection.length];
		/*for(int i=0;i<numOfWords;i++)
		{
			System.out.println(stringCollection[i]);
		}*/


			for(int i=0;i<stringCollection.length;i++)
			{
				 curString = stringCollection[i];
				 tempString = curString;
				while(index1!=-1)
				{
					index1 = ignoreCase(tempString).indexOf(ignoreCase(subStr));
					//System.out.println(index1);
					if(index1 != -1)  	// if substring present enter if block
					{
						tempString = curString.substring(0,index1); //copy from beginning till character before substring
						//System.out.println("yae!");
						index2 = index1 + subStr.length();
						tempString = tempString + curString.substring(index2,curString.length()); 	 //copy from character after substring to end of string

					}
					curString = tempString; // final string

				}
				index1 = 0;
				//System.out.println(curString);
				finalArray[finalIndex++] = curString; //add final string to array
				change = false;
			}
		/*for(String s:finalArray)
		{
			System.out.println(s);
		}*/
	return finalArray;
	}

	public static String ignoreCase(String str) 	 // function to ignore case
	{
		return str.toLowerCase();
	}
}

hey guys please see the line marked with "see this line in the above code". i added this line without actually knowing what i was doing. i mean i figured out that one line was being read in without entering any line inside of the for loop which follows..so i just read that blank line outside the loop so that the user would be able to the correct number of lines...can somebody please explain why exactly a blank line is being read here?

[Jeff Verdegan]

nextLine() reads from the current position up through the next end of line character. If you did something like nextInt() right before that, then the nextInt() will consume the characters that make up the int, but it doesn't consume the EOL characters at the end of that line, so you need the nextLine() to do that.

[sinatra roger]

i think i got it so just to confirm : below i am reading an int value but there is an unread EOL value..which is read in by the in.nextLine(). is my thinking right?
if so, is this the proper way to read this EOL character?

System.out.println("PLEASE ENTER THE NUMBER OF WORDS IN THE WORD ARRAY");  
        numOfWords = in.nextInt();  

[Jeff Verdegan]

thejwal pavithran wrote:i think i got it so just to confirm : below i am reading an int value but there is an unread EOL value..which is read in by the in.nextLine(). is my thinking right?
if so, is this the proper way to read this EOL character?

System.out.println("PLEASE ENTER THE NUMBER OF WORDS IN THE WORD ARRAY");  
        numOfWords = in.nextInt();  

Yes, I believe that's correct, and I think that's the standard way of handling these cases with Scanner. I never use Scanner myself.