Answer Posted / gaurav sehra

Using reflection we can see\access private data or private method of a class
u can try the below code and will easily see the desired result :-

import java.lang.reflect.Field;
class SimpleKeyPair {
private String privateKey = "India"; // private field
}
public class PrivateMemberAccessTest {
public static void main(String[] args) throws Exception {
SimpleKeyPair keyPair = new SimpleKeyPair();
Class c = keyPair.getClass();

// get the reflected object
Field field = c.getDeclaredField("privateKey");
// set accessible true
field.setAccessible(true);
System.out.println("Value of privateKey: " + field.get(keyPair)); // prints "Tokyo"
// modify the member varaible
field.set(keyPair, "Bharat");
System.out.println("Value of privateKey: " + field.get(keyPair)); // prints "Berlin"
}
}

What is the use of bufferedreader?

949

---

What is a cup of java?

978

---

How can we make string upper case or lower case?

1024

---

What are thread local variables?

1051

---

What is derived datatype?

1149

---

what is an objects lock and which objects have locks? : Java thread

944

---

Is java se open source?

970

---

Why is stringbuffer not immutable?

1005

---

Describe the Big-O Notation.

996

---

Which class is the superclass of all classes?

1052

---

What methods are used in Servlet?Applet communication?

2173

---

What do you mean by chromounits in java8?

895

---

Define Multiprogramming and Multiprocessing in java.

1062

---

Is there any way to find whether software installed in the system is registered by just providing the .exe file? I have tried the following code but its just displaying the directory structure in the registry. Here the code : package com.msi.intaller; import java.util.Iterator; import ca.beq.util.win32.registry.RegistryKey; import ca.beq.util.win32.registry.RootKey; public class RegistryFinder { public static void main(String... args) throws Exception { RegistryKey.initialize(RegistryFinder.class.getResource("jRe gistryKey.dll").getFile()); RegistryKey key = new RegistryKey(RootKey.HKLM, "Software\\ODBC"); for (Iterator subkeys = key.subkeys(); subkeys.hasNext();) { RegistryKey subkey = subkeys.next(); System.out.println(subkey.getName()); // You need to check here if there's anything which matches "Mozilla FireFox". } } }

1752

---

What is this keyword used for?

1064

---