Answer Posted / ganesh

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

public class MapEntrySetDemo {

public static void main(String[] argv) {

Map map = new HashMap();

map.put("Adobe", "Mountain View, CA");
map.put("IBM", "Mountain View, CA");
map.put("Learning Tree", "Los Angeles, CA");
map.put("Microsoft", "Redmond, WA");
map.put("Netscape", "Mountain View, CA");
map.put("O'Reilly", "Sebastopol, CA");
map.put("Sun", "Mountain View, CA");

Set entries = map.entrySet();
Iterator it = entries.iterator();
while (it.hasNext()) {
Map.Entry entry = (Map.Entry) it.next();
if("Mountain View, CA".equals(entry.getValue()))
{
System.out.println(entry.getKey() );

}
}
}
}

What is the method overriding?

624

---

Explain the use of sublass in a java program?

599

---

Can an interface extend a class?

545

---

What is externalizable?

622

---

What is methods and methodology?

538

---

---

Is void a data type in java?

528

---

How to sort array of 0 and 1 in java?

546

---

Can we create a class inside a class in java?

550

---

make a method which any number and any type of argument and print sum of that arguments.....

1386

---

Can we initialize the final blank variable?

588

---

Why there are some null interface in JAVA? What does it mean? Give some null interface in JAVA?

624

---

Which way a developer should use for creating thread, i.e. Sub classing thread or implementing runnable.

524

---

Assume a thread has lock on it, calling sleep() method on that thread will release the lock?

629

---

Is array primitive data type in java?

548

---

How can you share data between two thread in Java?

530

---