package com.home;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
public class HashMapDemo1 {
public static void main(String[] args) {
Map<Integer, String> a = new HashMap<Integer, String>();
a.put(1, "hari");
a.put(2, "Gopal");
a.put(3,...
Friday, May 13, 2016
vector in java
package com.home;
import java.util.Iterator;
import java.util.Vector;
public class VectorDemo {
public static void main(String[] args) {
Vector obj = new Vector();
obj.add(12);
obj.add("ram");
obj.add(1);
//System.out.println(obj);
/* Iterator it = obj.iterator();
while(it.hasNext()){
...
java arraylist
package com.home;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
public class ArrayLIstDemo {
public static void main(String[] args) {
ArrayList<String> alist = new ArrayList<String>();
alist.add("ram");
alist.add("hari");
alist.add("gopal");
alist.add("barma");
...
