Are strings immutable in java?

0 Answers  

---

Explain the difference between jdk, jre, and jvm?

0 Answers  

---

What are the practical benefits, if any, of importing a specific class rather than an entire package (e.g. Import java.net.* Versus import java.net.socket)?

0 Answers  

---

84. try { 85. ResourceConnection con = resourceFactory.getConnection(); 86. Results r = con.query(”GET INFO FROM CUSTOMER”); 87. info = r.getData(); 88. con.close(); 89. } catch (ResourceException re) { 90. errorLog.write(re.getMessage()); 91. } 92. return info; Which is true if a ResourceException is thrown on line 86? 1 Line 92 will not execute. 2 The connection will not be retrieved in line 85. 3 The resource connection will not be closed on line 88. 4 The enclosing method will throw an exception to its caller.

1 Answers  

---

watz the difference between abstract class and interface? Which one u ill choose as a designer?

1 Answers   Sonata,

---

Why are constructors used?

0 Answers  

---

What is the benefit of using enum to declare a constant?

0 Answers   Aspire, Infogain,

---

Explain what access modifiers can be used for methods?

0 Answers  

---

What is the use of private static?

0 Answers  

---

Can you explain the private protected field modifier?

0 Answers  

---

Write a program that takes a 5 digit number and calculates 2 power that number and prints it.

1 Answers  

---

What about instanceof operator in java?

0 Answers  

---