Question

Input a sentence from a user that ends with a full stop and remove all the extra spaces from the sentence.

				
					Enter the Sentence:
The             quick    brown         fox    jumped over          the    lazy   dog.
Sentence after removing extra Spaces:
The quick brown fox jumped over the lazy dog.

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Code

				
					import java.util.Scanner;
public class RemoveExtraSpaces
{
    public static void main()
    {
        int i=0,len=0;
        String sen="",newSen="",wd="";
        char ch=' ',lastCharacter=' ';
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter the Sentence:");
        sen=sc.nextLine();
        len=sen.length();
        lastCharacter=sen.charAt(len-1);
        if(lastCharacter!='.')
        {
            sen=sen+".";
            len++;
        }
        for(i=0;i< len;i++)
        {
            ch=sen.charAt(i);
            if(ch==' '||ch=='.')
            {
                if(wd.equals("")==false)
                {
                    newSen=newSen+wd;
                    newSen=newSen+ch;
                }
                wd="";
            }
            else
            {
                wd=wd+ch;
            }
        }
        System.out.println("Sentence after removing extra Spaces:");
        System.out.println(newSen);
    }
}