What is externalizable interface?

0 Answers  

---

How you can create a radio buttion using Checkbox class?

1 Answers  

---

what is private constructor?what are the uses of writing private constructor in our program?

10 Answers  

---

Why do we need variables?

0 Answers  

---

Consider that class classA, abstract class classB, and final classC have been defined.Which one of the following is correct? 1. classA extends classC implements classB 2. class A extends classB, classC 3. classA extends classB 4. classB implements classC

2 Answers  

---

---

Difference between Primary key and unique key?

4 Answers  

---

Which is better stringbuilder or stringbuffer?

0 Answers  

---

What is the java idl system?

0 Answers  

---

What is the use of protected in java?

0 Answers  

---

Can a constructor call the constructor of parent class?

0 Answers  

---

Are the imports checked for validity at compile time? Will the code containing an import such as java.lang.abcd compile?

0 Answers  

---

What is difference between public static and void?

0 Answers  

---