Question { 30836 }

How to convert string containing decimal point into integer
in java? For example given a string like "3.14" as input how
to get integer 3 as result.

Answer

/***************************************************/

import java.io.*;

class StringToInt
{
public static void main(String a[]) throws
IOException
{
String s;
BufferedReader br = new BufferedReader(new
InputStreamReader(System.in));
do{
s=br.readLine();
System.out.println("U R Sting
is: "+s);
}while(s.equals(" "));
try
{
double d = new Double(s);
int j = (int)d;
System.out.println(j);
}catch(NumberFormatException e)
{
System.out.println(" Your String is
Not a Number:.. ");
}
}
}

Question { FCS, 12659 }

how to store and retrive a set of values without using an
array

Answer

I think U need this .......

/*****************************************************/
import java.util.*;

class TreeSetDemo {
public static void main(String args[]) {
// Create a tree set.
TreeSet ts = new TreeSet();

// Add elements to the tree set.
ts.add("C");
ts.add("A");
ts.add("B");
ts.add("E");
ts.add("F");
ts.add("D");

System.out.println(ts);
}
}

/******************************************************/
The output from this program is shown here:
[A, B, C, D, E, F]
/*******************************************************/

/********************************
************ AND ************
**********************************/



import java.util.*;

class HashSetDemo {
public static void main(String args[]) {
// Create a hash set.
HashSet hs = new HashSet();

// Add elements to the hash set.
hs.add("B");
hs.add("A");
hs.add("D");
hs.add("E");
hs.add("C");
hs.add("F");

System.out.println(hs);
}
}

/**************************************/
The following is the output from this program:
[D, A, F, C, B, E]
/****************************************/

Is This Answer Correct ?

12 Yes

6 No