count no of words in string

[fakepics500]

i want to count the no words in a String

e.g
I am the best of all
output:
6

i am not getting how to make this work,plzzzz give some idea

[sunde887]

Look at how to use the string method split(...)

[fakepics500]

thanks for your advice

import java.io.*;

class wor
{
	public static void main(String ar[]) throws IOException
	{
		
		DataInputStream d= new DataInputStream(System.in);
		System.out.println("enter the string");
		String s=d.readLine();
		int words=0;
		String arr[]= new String[25];
		arr=s.split(" ");
			
		System.out.println("no of words in the line are"+arr.length);
	}
}

but i want to make String array size dyanamic

String arr[]= new String[25];

i want to remove all the commos and fullstop and al lpuntations sign to be removed before it stored
e.g i like you, i am sorry.
it should be stored as
arr[]={"i","like","you","i","am","sorry"}
i.e by removing cooma and full stop

[Norm]

i want to make String array size dyanamic

Arrays must be given a fixed size when they are defined.
There are classes that work like arrays that are dynamic: ArrayList

want to remove all the commos and fullstop

The String split method will do that.

[fakepics500]

The String split method will do that.

will substring method do it

for(int i=0;i<arr.length;i++)
{
       arr[i]=arr[i].subString(0,arr[i].lenght());
}

[Norm]

will substring method do it

Yes, it will do something, not sure.
Why don't you write a short simple program and test it and see what you get.

You can use:
System.out.println(java.util.Arrays.toString(arr)) ; // to show contents of array

[fakepics500]

it worked thanks norm

import java.io.*;

class wor
{
	public static void main(String ar[]) throws IOException
	{
		
		DataInputStream d= new DataInputStream(System.in);
		System.out.println("enter the string");
		String s=d.readLine();
		int words=0;
		String arr[]= new String[25];
		arr=s.split(" ");
			//System.out.println(java.util.Arrays.toString(arr)) ;
		for(int i=0;i<arr.length;i++)
		{
				int j=arr[i].length();
				if((arr[i].contains(","))||(arr[i].contains(".")))
    				   arr[i]=arr[i].substring(0,j-1);
		}
		//System.out.println(java.util.Arrays.toString(arr)) ;
		System.out.println("no of words in the line are"+arr.length);
	}
}

i want to calculate time taken by user to enter each word
eg: he is great
output
he 30
is 20
great 60

i made a code which use to calculate time taken by user to enter a line but now want to make time taken by user to enter each word

import java.io.*;
import java.util.*;
class type
{
	public static void main(String ar[]) throws IOException
	{
		Scanner s= new Scanner(System.in);
		DataInputStream d= new DataInputStream(System.in);
		int no;
		String str;
		System.out.println("\n\n\n\n\t\t\t\t\tTypeing speed contest\n\n\n\n");
		System.out.println("type the below given line\n\n i love you and i will kill you");
		System.out.println("when your are ready press 1");
		no=s.nextInt();
		
		Date d1 = new Date();
		long l1=d1.getTime();
		System.out.println("time 1="+l1);
		str=d.readLine();
		Date d2 = new Date();
		long l2=d2.getTime();
		System.out.println("time 2="+l2);
		double time= (double)l2-l1;
		System.out.println("time ="+time);
		time=time/100;
		time=time/60;	
		System.out.println("time ="+time);
		double len=str.length();
		double speed=len/time;
		System.out.println("your typing speed is="+(long)speed+"charaters/min");
	}
}

give me some clue to do this program

[Norm]

want to make time taken by user to enter each word

See the System class's currentTimeMillis method to capture the current time.

[fakepics500]

See the System class's currentTimeMillis method to capture the current time.

i not getting clue how to use System class's currentTimeMillis or Date class getTime because i need to get time after every word is entered(i.e after every space and carrage return)

[Norm]

If you get the time before a task and the time after the task, then you can subtract to get ...

[fakepics500]

If you get the time before a task and the time after the task, then you can subtract to get ...

yes but i how will i take before every word is entered as i am reading a line not words

[Junky]

You can't. Why on earth do you need that?

[fakepics500]

You can't. Why on earth do you need that?

thanks for the reply