sulavasingha
BAN USERimport java.util.*;
public class PhoneDirectory {
public static void main(String[] args) {
// TODO Auto-generated method stub
HashMap<String,Integer> map=new HashMap<String,Integer>();
map.put("ABC",1234);
map.put("abc", 4567);
map.put("Abc", 879);
Set key=map.keySet();
Iterator it=key.iterator();
System.out.println(key);
while(it.hasNext())
{
String str=it.next().toString();
String str1=str.toLowerCase();
//System.out.println(str);
if(str1.equals("abc"))
{
System.out.println(map.get(str));
}
}
}}
import java.util.*;
public class CountWordsusingMap {
public static void main(String[] args) {
// TODO Auto-generated method stub
String[] arr={"good","word","tito","english","GOOD","Word","WORD","good","english","hindi",
"rahul","rahul","english","RAhul"};
HashMap<String,Integer> map=new HashMap<String,Integer>();
for(String str:arr)
{
String key=str;
key=key.toLowerCase();
if(map.containsKey(key))
{
map.put(key, map.get(key)+1);
}
else
{
map.put(key, 1);
}
}
Set<String> Keys=map.keySet();
Iterator<String> it=Keys.iterator();
while(it.hasNext())
{
String value=it.next();
System.out.println(value +"---" +map.get(value));
}
}
}
- sulavasingha February 01, 2015