getCurrentDate in Java

    public String getCurrentDate(String format) {
        String date = "";
        SimpleDateFormat sdf = new SimpleDateFormat(format);
        date = sdf.format(new Date());
        return date;
    }

RemDupFromList.java

RemDupFromList.java

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

package java4s; import java.util.ArrayList; import java.util.HashSet; import java.util.Iterator; import java.util.List; public class RemDupFromList {     public static void main(String[] args)     {         List li = new ArrayList();               li.add("one");               li.add("two");               li.add("three");               li.add("one");//Duplicate               li.add("one");//Duplicate              // We have facility to pass a List into Set constructor and vice verse to cast                      List li2 = new ArrayList(new HashSet(li)); //no order              // List li2 = new ArrayList(new LinkedHashSet(li)); //If you need to preserve the order use 'LinkedHashSet'              Iterator it= li2.iterator();              while(it.hasNext())              {                  System.out.println(it.next());              }     } } Explanation Take your normal List object Pass that List li object to Set [Line number 22]  => So finally we have Set object in our hand, just pass this current Set object as argument to ArrayList, so we got new List object li2 without duplicate But if you would like to preserve the order of data use LinkedHashSet rather HashSet

How to find duplicate values in ArrayList with out iterarting..?

1. List list = new ArrayList();  
2.     list.add("a");  
3.     list.add("a");  
4.     list.add("b");  
5.     list.add("c");  
6.     list.add("c");   
7.     System.out.println(list);  
8.     Set s = new HashSet(list);  
9.     System.out.println("Set :- " +s); 

findDuplicates in a list and return them

public Set<Integer> findDuplicates(List<Integer> listContainingDuplicates)
{ 
  final Set<Integer> setToReturn = new HashSet(); 
  final Set<Integer> set1 = new HashSet();

  for (Integer yourInt : listContainingDuplicates)
  {
   if (!set1.add(yourInt))
   {
    setToReturn.add(yourInt);
   }
  }
  return setToReturn;
}

 have a List of type Integer eg:

[1, 1, 2, 3, 3, 3]

I would like a method to return all the duplicates eg:
[1, 3]

 ----------------

List<Item> list = ...;
list.removeAll(new HashSet<Item>(list));
return new HashSet<Item>(list); 

  ----------------

public static Set<Integer> findDuplicates(List<Integer> input) {
    List<Integer> copy = new ArrayList<Integer>(input);
    for (Integer value : new HashSet<Integer>(input)) {
        copy.remove(value);
    }
    return new HashSet<Integer>(copy );
} 

 ----------------

public static void main(String[] args) {
        List<Integer> list = new LinkedList<Integer>();
        list.add(1);
        list.add(1);
        list.add(1);
        list.add(2);
        list.add(3);
        list.add(3);
        Map<Integer,Integer> map = new HashMap<Integer, Integer>();
        for (Integer x : list) { 
            Integer val = map.get(x);
            if (val == null) { 
                map.put(x,1);
            } else {
                map.remove(x);
                map.put(x,val+1);
            }
        }
        List<Integer> result = new LinkedList<Integer>();
        for (Entry<Integer, Integer> entry : map.entrySet()) {
            if (entry.getValue() > 1) {
                result.add(entry.getKey());
            }
        }
        for (Integer x : result) { 
            System.out.println(x);
        }

    } 

 ----------------

public void testFindDuplicates() {

    List<Integer> list = new ArrayList<Integer>();
    list.add(1);
    list.add(1);
    list.add(2);
    list.add(3);
    list.add(3);
    list.add(3);

    Set<Integer> result = new HashSet<Integer>();
    int currentIndex = 0;
    for (Integer i : list) {
        if (!result.contains(i) && list.subList(currentIndex + 1, list.size()).contains(i)) {
            result.add(i);
        }
        currentIndex++;
    }
    assertEquals(2, result.size());
    assertTrue(result.contains(1));
    assertTrue(result.contains(3));
}

-----------

ublic List<int> GetDuplicates(int max)
{   
    //allocate and clear memory to 0/false
    bit[] buckets=new bit[max]
    memcpy(buckets,0,max);
    //find duplicates
    List<int> result=new List<int>();
    foreach(int val in List)
    {
        if (buckets[val])
        {
            result.add(value);
        }
        else
        {
            buckets[val]=1;
        }
    }
    return  result
}  

----------

private <T> Set<T> findDuplicates(Collection<T> list) {

    Set<T> duplicates = new LinkedHashSet<T>();
    Set<T> uniques = new HashSet<T>();

    for(T t : list) {
        if(!uniques.add(t)) {
            duplicates.add(t);
        }
    }

    return duplicates;
}

-------

import java.util.HashSet;

import java.util.LinkedList;

import java.util.List;

import java.util.Set;

 

public class CrunchifyFindDuplicateInList {

 

    /**

     * @author Crunchify.com

     */

 

    public static void main(String[] args) {

        List<String> list = new LinkedList<String>();

        for (int i = 0; i < 10; i++) {

            list.add(String.valueOf(i));

        }

        for (int i = 0; i < 5; i++) {

            list.add(String.valueOf(i));

        }

 

        System.out.println("My List : " + list);

        System.out.println("\nHere are the duplicate elements from list : " + findDuplicates(list));

    }

 

    public static Set<String> findDuplicates(List<String> listContainingDuplicates) {

 

        final Set<String> setToReturn = new HashSet<String>();

        final Set<String> set1 = new HashSet<String>();

 

        for (String yourInt : listContainingDuplicates) {

            if (!set1.add(yourInt)) {

                setToReturn.add(yourInt);

            }

        }

        return setToReturn;

    }

}

Output

1 2 3

My List : [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4]   Here are the duplicate elements from list : [3, 2, 1, 0, 4]

 

CREATE OR REPLACE procedure insert_auw_into_temp() is
cursor air_cur is select distinct temp.reg_no,air.max_allup_wt from tc_temp_log temp,tc_aircraft_mt air where temp.max_allup_wt is null and trim(temp.reg_no)=trim(air.reg_no);
   v_temp air_cur%rowtype;
begin
   open air_cur;
   loop
      fetch air_cur into v_temp;
      exit when air_cur%notfound;
      update tc_temp_log set max_allup_wt=v_temp.max_allup_wt where trim(reg_no)=trim(v_temp.reg_no);
   end loop;
   close air_cur;
end;
/

get_nextcode

/* Formatted on 2013/06/10 17:43 (Formatter Plus v4.8.8) */
CREATE OR REPLACE FUNCTION get_nextcode (
   p_table_name   VARCHAR,
   p_col_name     VARCHAR,
   p_length       NUMBER
)
   RETURN VARCHAR
IS
   v_query      VARCHAR (200);
   v_autocode   VARCHAR (50);
BEGIN
   v_query :=
         'select lpad(nvl(max(to_number('
      || p_col_name
      || '))+1,1),'
      || p_length
      || ',0) code from '
      || p_table_name;

   EXECUTE IMMEDIATE v_query
                INTO v_autocode;

   RETURN v_autocode;
END;
/

gettimeslot

/* Formatted on 2013/06/10 17:42 (Formatter Plus v4.8.8) */
CREATE OR REPLACE FUNCTION vabb.gettimeslot (vtime IN VARCHAR2)
   RETURN VARCHAR2
IS
   RESULT   VARCHAR2 (10);
BEGIN
   IF (vtime >= '0000' AND vtime <= '0100')
   THEN
      RESULT := '0531-0630';
   ELSIF (vtime >= '0101' AND vtime <= '0200')
   THEN
      RESULT := '0631-0730';
   ELSIF (vtime >= '0201' AND vtime <= '0300')
   THEN
      RESULT := '0731-0830';
   ELSIF (vtime >= '0301' AND vtime <= '0400')
   THEN
      RESULT := '0831-0930';
   ELSIF (vtime >= '0401' AND vtime <= '0500')
   THEN
      RESULT := '0931-1030';
   ELSIF (vtime >= '0501' AND vtime <= '0600')
   THEN
      RESULT := '1031-1130';
   ELSIF (vtime >= '0601' AND vtime <= '0700')
   THEN
      RESULT := '1131-1230';
   ELSIF (vtime >= '0701' AND vtime <= '0800')
   THEN
      RESULT := '1231-1330';
   ELSIF (vtime >= '0801' AND vtime <= '0900')
   THEN
      RESULT := '1331-1430';
   ELSIF (vtime >= '0901' AND vtime <= '1000')
   THEN
      RESULT := '1431-1530';
   ELSIF (vtime >= '1001' AND vtime <= '1100')
   THEN
      RESULT := '1531-1630';
   ELSIF (vtime >= '1101' AND vtime <= '1200')
   THEN
      RESULT := '1631-1730';
   ELSIF (vtime >= '1201' AND vtime <= '1300')
   THEN
      RESULT := '1731-1830';
   ELSIF (vtime >= '1301' AND vtime <= '1400')
   THEN
      RESULT := '1831-1930';
   ELSIF (vtime >= '1401' AND vtime <= '1500')
   THEN
      RESULT := '1931-2030';
   ELSIF (vtime >= '1501' AND vtime <= '1600')
   THEN
      RESULT := '2031-2130';
   ELSIF (vtime >= '1601' AND vtime <= '1700')
   THEN
      RESULT := '2131-2230';
   ELSIF (vtime >= '1701' AND vtime <= '1800')
   THEN
      RESULT := '2231-2330';
   ELSIF (vtime >= '1801' AND vtime <= '1900')
   THEN
      RESULT := '2331-0030';
   ELSIF (vtime >= '1901' AND vtime <= '2000')
   THEN
      RESULT := '0031-0130';
   ELSIF (vtime >= '2001' AND vtime <= '2100')
   THEN
      RESULT := '0131-0230';
   ELSIF (vtime >= '2101' AND vtime <= '2200')
   THEN
      RESULT := '0231-0330';
   ELSIF (vtime >= '2201' AND vtime <= '2300')
   THEN
      RESULT := '0331-0430';
   ELSE
      RESULT := '0431-0530';
   END IF;

   RETURN (RESULT);
END gettimeslot;
/

getistdays

/* Formatted on 2013/06/10 17:42 (Formatter Plus v4.8.8) */
CREATE OR REPLACE FUNCTION vabb.getistdays (
   mon       IN   VARCHAR2,
   tue       IN   VARCHAR2,
   wed       IN   VARCHAR2,
   thu       IN   VARCHAR2,
   fri       IN   VARCHAR2,
   sat       IN   VARCHAR2,
   sun       IN   VARCHAR2,
   utctime        VARCHAR2
)
   RETURN VARCHAR2
IS
   RESULT   VARCHAR2 (20);
   p_mon    VARCHAR2 (2)  := '--';
   p_tue    VARCHAR2 (2)  := '--';
   p_wed    VARCHAR2 (2)  := '--';
   p_thu    VARCHAR2 (2)  := '--';
   p_fri    VARCHAR2 (2)  := '--';
   p_sat    VARCHAR2 (2)  := '--';
   p_sun    VARCHAR2 (2)  := '--';
BEGIN
   IF (utctime >= '1830' AND utctime <= '2359')
   THEN
      IF (   mon != 'Y'
          OR tue != 'Y'
          OR wed != 'Y'
          OR thu != 'Y'
          OR fri != 'Y'
          OR sat != 'Y'
          OR sun != 'Y'
         )
      THEN
         IF (mon = 'Y')
         THEN
            IF sun != 'Y'
            THEN
               p_mon := '--';
            END IF;

            p_tue := '2';
         END IF;

         IF (tue = 'Y')
         THEN
            IF mon != 'Y'
            THEN
               p_tue := '--';
            END IF;

            p_wed := '3';
         END IF;

         IF (wed = 'Y')
         THEN
            IF tue != 'Y'
            THEN
               p_wed := '--';
            END IF;

            p_thu := '4';
         END IF;

         IF (thu = 'Y')
         THEN
            IF wed != 'Y'
            THEN
               p_thu := '--';
            END IF;

            p_fri := '5';
         END IF;

         IF (fri = 'Y')
         THEN
            IF thu != 'Y'
            THEN
               p_fri := '--';
            END IF;

            p_sat := '6';
         END IF;

         IF (sat = 'Y')
         THEN
            IF fri != 'Y'
            THEN
               p_sat := '--';
            END IF;

            p_sun := '7';
         END IF;

         IF (sun = 'Y')
         THEN
            IF sat != 'Y'
            THEN
               p_sun := '--';
            END IF;

            p_mon := '1';
         END IF;
      ELSE
         p_mon := '1';
         p_tue := '2';
         p_wed := '3';
         p_thu := '4';
         p_fri := '5';
         p_sat := '6';
         p_sun := '7';
      END IF;
   ELSE
      IF mon = 'Y'
      THEN
         p_mon := '1';
      ELSE
         p_mon := '--';
      END IF;

      IF tue = 'Y'
      THEN
         p_tue := '2';
      ELSE
         p_tue := '--';
      END IF;

      IF wed = 'Y'
      THEN
         p_wed := '3';
      ELSE
         p_wed := '--';
      END IF;

      IF thu = 'Y'
      THEN
         p_thu := '4';
      ELSE
         p_thu := '--';
      END IF;

      IF fri = 'Y'
      THEN
         p_fri := '5';
      ELSE
         p_fri := '--';
      END IF;

      IF sat = 'Y'
      THEN
         p_sat := '6';
      ELSE
         p_sat := '--';
      END IF;

      IF sun = 'Y'
      THEN
         p_sun := '7';
      ELSE
         p_sun := '--';
      END IF;
   END IF;

   RESULT :=
         p_mon
      || ' '
      || p_tue
      || ' '
      || p_wed
      || ' '
      || p_thu
      || ' '
      || p_fri
      || ' '
      || p_sat
      || ' '
      || p_sun;
   RETURN (RESULT);
END getistdays;
/

getistday

/* Formatted on 2013/06/10 17:41 (Formatter Plus v4.8.8) */
CREATE OR REPLACE FUNCTION getistday (DAY IN VARCHAR2, utctime VARCHAR2)
   RETURN VARCHAR2
IS
   RESULT   VARCHAR2 (20);
   p_day    VARCHAR2 (3)  := ' ';
BEGIN
   IF (utctime >= '1830' AND utctime <= '2359')
   THEN
      IF (DAY = 'MON')
      THEN
         p_day := 'TUE';
      END IF;

      IF (DAY = 'TUE')
      THEN
         p_day := 'WED';
      END IF;

      IF (DAY = 'WED')
      THEN
         p_day := 'THU';
      END IF;

      IF (DAY = 'THU')
      THEN
         p_day := 'FRI';
      END IF;

      IF (DAY = 'FRI')
      THEN
         p_day := 'SAT';
      END IF;

      IF (DAY = 'SAT')
      THEN
         p_day := 'SUN';
      END IF;

      IF (DAY = 'SUN')
      THEN
         p_day := 'MON';
      END IF;
   ELSE
      p_day := DAY;
   END IF;

   RESULT := p_day;
   RETURN (RESULT);
END getistday;
/

getfinancialyear (strdate VARCHAR)

/* Formatted on 2013/06/10 17:40 (Formatter Plus v4.8.8) */
CREATE OR REPLACE FUNCTION getfinancialyear (strdate VARCHAR)
   RETURN VARCHAR
AS
   v_month   VARCHAR2 (10);
   v_year    VARCHAR2 (10);
BEGIN
   --strDate format should be Mon/YYYY
   v_month := UPPER (SUBSTR (strdate, 1, 3));
   v_year := SUBSTR (strdate, 5);

   IF (INSTR ('JAN|FEB|MAR', v_month) > 0)
   THEN
      v_year := (TO_NUMBER (v_year) - 1) || '-' || SUBSTR (v_year, 3);
   ELSE
      v_year := v_year || '-' || SUBSTR (TO_CHAR (TO_NUMBER (v_year) + 1), 3);
   END IF;

   RETURN v_year;
END;
/

how to compare two datetime objects in Java

        //Create First Date Object
        DateFormat sdf = new java.text.SimpleDateFormat("dd/MMM/yyyy HHMM");
        Date date1 = null;
        Date date2 = null;
//        @SuppressWarnings({"unchecked", "varargs"});
       
        try {
           
            date1 = sdf.parse("18/MAR/2013 2310");
            date2 = sdf.parse("18/MAR/2013 2315");
            System.out.println("First Date  : " + date1.toString());
            System.out.println("Second Date : " + date2.toString());
           
        } catch (ParseException e1) {
            e1.printStackTrace();
        }
        /*
         Use compareTo method of java Date class to compare two date objects.
         compareTo returns value grater than 0 if first date is after another date,
         returns value less than 0 if first date is before another date and returns
         0 if both dates are equal.
         */

        int results = date1.compareTo(date2);

        if (results > 0)
            System.out.println("First Date is after second" + results);
        else if (results < 0)
            System.out.println("First Date is before second" + results);
        else
            System.out.println("Both dates are equal" + results);

Two Dates Difference in days Using Java

    public long getDateDifference(String date1, String date2) {
        long noOfDays = 0;
        int days = 0;
        Date validatDt1 = new Date();
        Date validatDt2 = new Date();
        SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy");
        try {
            validatDt1 = sdf.parse(date1);
            validatDt2 = sdf.parse(date2);

            noOfDays = (validatDt2.getTime() - validatDt1.getTime());
            noOfDays = (noOfDays / (1000L * 60L * 60L * 24L * 365));
       
        } catch (ParseException e) {
            e.printStackTrace();
        }

        return noOfDays;

    }

Minutes display in 24hr Time Format

    public String timediffinminutes(String minutes) {
            int totalMinutesInt = Integer.valueOf(minutes.toString());
       
            int hours = totalMinutesInt / 60;
            int mins= (totalMinutesInt % 60 *100) /60;
            System.out.println(" & mins : "+mins);
            int hoursToDisplay = hours;
       
            if (hours > 12) {
                hoursToDisplay = hoursToDisplay - 12;
            }
       
            int minutesToDisplay = totalMinutesInt - (hours * 60);
       
            String minToDisplay = null;
            if(minutesToDisplay == 0 )
                minToDisplay = "00";    
            else
            if( minutesToDisplay < 10 )
                minToDisplay = "0" + minutesToDisplay ;
            else
                minToDisplay = "" + minutesToDisplay ;
       
            String displayValue = hoursToDisplay + ":" + minToDisplay;
            System.out.println(" ****** displayValue : "+displayValue);
            return displayValue;
           
        }

Order by DATETIME in SQL

order by to_timestamp(ENTRYDATE||':'||ENTRYTIME,'dd-mm-yyyy:HH24:MI:SS') ASC

how to find the first and last values in a List in JAVA

        String first=list.get(0).toString();
        String last=list.get(l1.size()-1).toString();

replacing space in special characters when ajax Loading

 function replaceSpace(obj)
 {
   obj.value=obj.value.replace(/^\s*|\s(?=\s)|\s*$/g, "");
 }

How to find the number is even without using arithmetic Operators

public class EvenOrOddWithoutArithOprs {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner in = new Scanner(System.in);

        System.out.println("Enter any number : ");

        // return the user input as integer
        int number = in.nextInt();

        // Finding Even and Odd number using Bitwise AND operator in Java.

        System.out.printf("Finding number if its even or odd using bitwise AND operator %n");

        // For Even numbers
        // XXX0
        // 0001 AND
        // 0000
        if ((number & 1) == 0) {
            System.out.println("number %d is even number %n" + number);
        } else {
            System.out.println("number %d is odd number %n" + number);
        }
    }

}

A QUERY FOR TWO DIFFERENT DATE AND TIMES BETWEEN TWO DATES

Select (To_Date(Decode('01/MAY/2013', '', '01/Jan/1910', '01/MAY/2013') ||
                                                ' 0001',
                                                'DD-MON-YYYY HH24MI')) +
                                       (Rownum - 1) / 24 FromDate,
                                       (To_Date(Decode('31/MAY/2013', '', '31/Dec/9990', '31/MAY/2013') ||
                                                ' 0000',
                                                'DD-MON-YYYY HH24MI')) +
                                       (Rownum / 24) ToDate,
                                       'F' Type,
                                       'XXXX' Operator,
                                       '' FlightNature
                                  From tab
                                 Where Rownum <= 24

QUERY FOR DATE AND TIME SLOT

Select to_char((To_Date(Decode('01/MAY/2013', '', '01/Jan/1910', '01/MAY/2013') ||
                ' 0001',
                'DD-MON-YYYY HH24MI')) + (Rownum - 1) / 24 ,'DD-MON-YYYY HH:MI:SS AM') FromDate,
       to_char((To_Date(Decode('31/MAY/2013', '', '31/Dec/9990', '31/MAY/2013') ||
                ' 0000',
                'DD-MON-YYYY HH24MI')) + (Rownum / 24),'DD-MON-YYYY HH:MI:SS AM') ToDate,
       'F' Type,
       'XXXX' Operator,
       '' FlightNature
  From tab
 Where Rownum <= 24

Connecting the database and return values using hibernate session

public class InvPersonalInformationDAO {
    private static InvPersonalInformationDAO invPersonalInformationDAO;
    public InvPersonalInformationDAO(){}
   
    public static InvPersonalInformationDAO getInstance(){
        if(invPersonalInformationDAO == null){
            invPersonalInformationDAO = new InvPersonalInformationDAO();
        }
        return new InvPersonalInformationDAO();
    }
 
public List getInventoryList()throws EPASException{
        List inventoryList = new ArrayList();
        try {
            Session session = HibernateSessionFactory.getSession();
            Query query = session.createQuery("SELECT invEmpPiBasicDet FROM InvEmpPiBasicDet invEmpPiBasicDet WHERE invEmpPiBasicDet.invEmpMstStatus = '1' ");
            Iterator iterator = query.list().iterator();
            while(iterator.hasNext()){
                InvEmpPiBasicDet invEmpPiBasicDet = (InvEmpPiBasicDet)iterator.next();
                System.out.println("invEmpPiBasicDet.getBasicsalary() : "+invEmpPiBasicDet.getBasicsalary());
                inventoryList.add(EntityToBeanConverter.convertInvEmpPiBasicDetToInvPersonalInformationBean(invEmpPiBasicDet));
            }
        } catch (Exception e) {
            e.printStackTrace();
            throw new EPASException(e);
        }finally{
            HibernateSessionFactory.closeSession();
        }
        return inventoryList;
    }

public static void main(String[] args) {
        InvPersonalInformationDAO id=new InvPersonalInformationDAO();
   //or //
        //InvPersonalInformationDAO id=InvPersonalInformationDAO.getInstance();
        try {
            List l1=id.getInventoryList();
        } catch (EPASException e) {
            e.printStackTrace();
        }
    }
}

retNodeValue(req,node) in AJAX

function retNodeValue(req,node)
{
     if(req.responseXML.getElementsByTagName(node)[0].firstChild!=null||req.responseXML.getElementsByTagName(node)[0].firstChild!="")
        return req.responseXML.getElementsByTagName(node)[0].firstChild.nodeValue;
    else
        return ' ';
}

In Struts-config.xml file form names having multiple but id value must be unique other wise we will get id is already defined error will get when strut-config.xml file is loaded

       
 In Struts-config.xml file form names having multiple but id value must be unique other wise we will get id is already defined error will get when strut-config.xml file is loaded

 <form-bean name="loginValidation" type="org.apache.struts.validator.DynaValidatorForm" id="i1" >
            <form-property name="userId" type="java.lang.String" />
            <form-property name="password" type="java.lang.String" />
            <form-property name="dept" type="java.lang.String" />
        </form-bean>
        <form-bean name="loginValidation" type="org.apache.struts.validator.DynaValidatorForm"   id="i2">
            <form-property name="userId" type="java.lang.String" />
            <form-property name="password" type="java.lang.String" />
            <form-property name="dept" type="java.lang.String" />
        </form-bean>