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Q131. - (Topic 2) 

Which is a requirement to use applets in a web browser? 

A. The Java compiler must be installed on the client. 

B. A web container must be installed at the server. 

C. The Java Runtime Environment must be installed on the client. 

D. The Java Plug-in must be installed on the server. 


Q132. - (Topic 2) 

Which two packages are used to create GUI programs in J2SE? (Choose two.) 

A. java.util 

B. javax.swing 



E. java.awt 

Answer: B,E 

Q133. - (Topic 2) 

Click the Exhibit button. 

Which two classes can have two or more instances associated with a single instance of X. (Choose two.) 

A. D 

B. A 

C. C 

D. B 

Answer: C,D 

Q134. - (Topic 2) 

Which is true about RMI? 

A. RMI is used to create thin web clients. 

B. RMI is used to develop applications for wireless mobile devices. 

C. RMI is the Java API used for executing queries on a database. 

D. RMI allows objects to be sent from one computer to another. 

E. RMI is the transport protocol used by web servers and browsers. 


Q135. - (Topic 2) 

Which three compile without error? (Choose three.) 

A. String str = 'Hello' 

B. String str = "Hello"; 

C. String str = "Hello" - " World!"; 

D. String str = new String("Hello"); 

E. String str = "Hello" + " World!"; 

F. String str = new String('Hello'); 

Answer: B,D,E 

Q136. - (Topic 1) 

Which is valid? 

A. package com.example; 

class Test { } 

import java.util.*; 

B. package com.example; 

import java.util; 

import java.*; 

class Test { } 

C. package com.example; 

import java.util.*; 


class Test { } 

D. import java.util.*; 

package com.example; 

class Test { } 

E. package com.example; 

package com.sun; 

import java.util.*; 

class Test { } 


Q137. - (Topic 2) 



 class A { 


 public void methodX(int i) { /* some code */ } 


 public String methodY(String s) { /* some code */ } 




 class B extends A { 


 public void methodX(int i) { /* some code */ } 


 public String methodX(String s) { /* some code */ } 


 public String methodY(String s) { /* some code */ } 



Which two are true? (Choose two.) 

A. The methodY(String) in class B overrides methodY(String) in class A. 

B. The methodY(String) in class B overloads methodY(String) in class A. 

C. The methodX(String) in class B overrides methodX(int) in class A. 

D. The methodX(int) in class B overrides methodX(int) in class A. 

E. The methodX(int) in class A overloads methodX(String) in class B. 

Answer: A,D 

Q138. - (Topic 2) 



 class Test { 


 public static void main(String args[]) { 


 String str = new String("Welcome"); 


 // insert code here 





Which, inserted at line 4, produces the output true? 

A. System.out.println(str.startsWith("W")); 

B. System.out.println(str.indexOf(1)); 

C. System.out.println(str.trim()); 

D. System.out.println(str.startsWith('W')); 

E. System.out.println(str.indexOf("W")); 


191. - (Topic 2) 

Which two are valid representations of operations in UML? (Choose two.) 

A. public void op(int param) 

B. + int op(int param) 

C. + op(param : int) : int 

D. - op(p : P) : P 

E. * op(param : int) : int 

Answer: C,D 

Q139. - (Topic 2) 

Which two are true? (Choose two.) 

A. A class that extends another class CANNOT be well encapsulated. 

B. If class B is well encapsulated, then class A can access class B's instance variables only through a method invocation. 

C. A class with a public instance variable CANNOT be well encapsulated. 

D. Polymorphism only applies when one class encapsulates another. 

Answer: B,C 

Q140. - (Topic 2) 

Which four are primitive data types? (Choose four.) 

A. Integer 

B. String 

C. short 

D. long 

E. null 

F. int 

G. char 

Answer: C,D,F,G