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public class X{private int x,y; public void m1(boolean b) {x<<=1;if(b)x++;y++;}public Boolean m2 () {if(m6 ( )) return null;return x%2!=0;}public Boolean m3(){Boolean z=m2 ();if(z!=null){x>>>=1;y--;}return z;}public void m4(){x=y=0;}public int m5 () {return y;}public boolean m6 () {return y==0;}} w www wm

public class X{private int x,y; public void m1(boolean b) {x<<=1;if(b)x++;y++;}public Boolean m2 () {if(m6 ( )) return null;return x%2!=0;}public Boolean m3(){Boolean z=m2 ();if(z!=null){x>>>=1;y--;}return z;}public void m4(){x=y=0;}public int m5 () {return y;}public boolean m6 () {return y==0;}} w www wm

Computer Networking: A Top-Down Approach (7th Edition)
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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Java help !!! Please help me with my questions. Provide detailed answers. Thanks. Should mention that the class is called X and this is the way the code was provided. I am intermediate level at java currently studying year 1 comp sci. thanks again

public class X{private int x,y; public void m1(boolean b) {x<<=1;if(b)x++;y++;}public Boolean m2 () {if(m6 ( )) return null;return x%2!=0;}public Boolean m3(){Boolean z=m2 ();if(z!=null){x>>>=1;y--;}return z;}public void m4(){x=y=0;}public int m5 () {return y;}public boolean m6 () {return y==0;}}
Transcribed Image Text:public class X{private int x,y; public void m1(boolean b) {x<<=1;if(b)x++;y++;}public Boolean m2 () {if(m6 ( )) return null;return x%2!=0;}public Boolean m3(){Boolean z=m2 ();if(z!=null){x>>>=1;y--;}return z;}public void m4(){x=y=0;}public int m5 () {return y;}public boolean m6 () {return y==0;}}
Advanced: Legacy code One of the developers on your team has gone into retirement and the job of maintaining their code has been dumped on you. In order to add a new feature, you must understand how the existing code works. The class X.java (in Assignment2.zip) is particularly obscure. Your predecessor seems to have been obsessed with efficiency and has no concept of code quality or documentation. All you can tell from context is that it must be some kind of data structure. You now have to look at the code to work out what it does. Hint: Look up bitwise operators and bit shifting. For each method in X.java, do the following: State what the method does. Give it a more descriptive name. Explain in detail how the code works (not required for methods m5 and m6). Finally, answer the following questions: What kind of data structure is this i.e. what would be a better name for class X? What are the advantages and disadvantages of the chosen data representation? What is categorically wrong with X.java? What aspect of the code can be justified and under which circumstances?
Transcribed Image Text:Advanced: Legacy code One of the developers on your team has gone into retirement and the job of maintaining their code has been dumped on you. In order to add a new feature, you must understand how the existing code works. The class X.java (in Assignment2.zip) is particularly obscure. Your predecessor seems to have been obsessed with efficiency and has no concept of code quality or documentation. All you can tell from context is that it must be some kind of data structure. You now have to look at the code to work out what it does. Hint: Look up bitwise operators and bit shifting. For each method in X.java, do the following: State what the method does. Give it a more descriptive name. Explain in detail how the code works (not required for methods m5 and m6). Finally, answer the following questions: What kind of data structure is this i.e. what would be a better name for class X? What are the advantages and disadvantages of the chosen data representation? What is categorically wrong with X.java? What aspect of the code can be justified and under which circumstances?
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