1- Which of the following code snippet represents a Singleton design patternimplementation?I) public class ClassX {II) public class ClassX {public ClassX instance= null;private ClassX instance= null;public ClassX () {}private ClassX () {}public static ClassX getlnstance() {if(instance==nullI)instance= new ClassX();public static ClassX getlnstance() {if(instance==null)instance= new ClassX();return instance;return instance;}}II) public class ClassX {IV) public class ClassX {private static ClassX instance= null;private static ClassX instance= null;private ClassX () {}public ClassX () {}public static ClassX getlnstance() {if(instance==null)instance= new ClassX();public static ClassX getlnstance() {if(instance==null)instance= new ClassX();return instance;return instance;}} a) O IIIb) O Ic) O IVd) O ||

Answered: Which of the following code snippet…

Engineering

Computer Engineering

Which of the following code snippet represents a Singleton design pattern implementation?

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

100%

1- Which of the following code snippet represents a Singleton design pattern
implementation?
I) public class ClassX {
II) public class ClassX {
public ClassX instance= null;
private ClassX instance= null;
public ClassX () {
}
private ClassX () {
}
public static ClassX getlnstance() {
if(instance==nullI)
instance= new ClassX();
public static ClassX getlnstance() {
if(instance==null)
instance= new ClassX();
return instance;
return instance;
}
}
II) public class ClassX {
IV) public class ClassX {
private static ClassX instance= null;
private static ClassX instance= null;
private ClassX () {
}
public ClassX () {
}
public static ClassX getlnstance() {
if(instance==null)
instance= new ClassX();
public static ClassX getlnstance() {
if(instance==null)
instance= new ClassX();
return instance;
return instance;
}
}

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