In class we discussed Model 1 and Model 2 (MVC) architecture for web applications. Describe the flow of a web request in the Model 1 architecture. Describe the flow of a web request in the Model 2 architecture. Name two benefits of Model 2 over Model 1.
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Write a servlet that will receive the form submission, creat…
Write a servlet that will receive the form submission, create a User object containing the submitted data, and forward to a JSP.
List the four scopes that EL expressions search when resolvi…
List the four scopes that EL expressions search when resolving a name, in the order in which they are checked.
Briefly explain why we should use generics when implementing…
Briefly explain why we should use generics when implementing the Comparable interface.
Interfaces may contain … (select all that apply)
Interfaces may contain … (select all that apply)
Shared Instructions Indicate the result of the snippet of co…
Shared Instructions Indicate the result of the snippet of code, assuming that it is in a main method of a class. More specifically, you must indicate one of the following: the output of the code, if the code compiles and runs without errors which statement(s) don’t compile (line #s, first line is #1) and why, if the code doesn’t compile when put in a main method the type of runtime error and the statement that caused it (line #, first line is #1) if the code compiles but doesn’t run properly Shared Code public class W { // In W.java public String toString() { return “W”; } public String sW() { return “1”; } } public class X extends W { // In X.java public String toString() { return “X”; } public String sX() { return “2”; } } public class Y extends X {} // In Y.java public class Z extends W {} // In Z.java Unique Snippet X x = new X(); W w = x; System.out.print(w.toString());
Order the following growth rates from most efficient (1) to…
Order the following growth rates from most efficient (1) to the least (6): Quadratic, Linear, Exponential, Cubic, Logarithmic, Constant. Use this template for your answer (please type fully – you cannot copy): 1: [answer for 1st – the most efficient] 2: [answer for 2nd] 3: [answer for 3rd] 4: [answer for 4th] 5: [answer for 5th] 6: [answer for 6th – the least efficient]
What is the maximum number of interfaces a Java class can in…
What is the maximum number of interfaces a Java class can inherit from?
Shared Instructions Indicate the result of the snippet of co…
Shared Instructions Indicate the result of the snippet of code, assuming that it is in a main method of a class. More specifically, you must indicate one of the following: the output of the code, if the code compiles and runs without errors which statement(s) don’t compile (line #s, first line is #1) and why, if the code doesn’t compile when put in a main method the type of runtime error and the statement that caused it (line #, first line is #1) if the code compiles but doesn’t run properly Shared Code public class W { // In W.java public String toString() { return “W”; } public String sW() { return “1”; } } public class X extends W { // In X.java public String toString() { return “X”; } public String sX() { return “2”; } } public class Y extends X {} // In Y.java public class Z extends W {} // In Z.java Unique Snippet X x = new X(); System.out.print(((Z)x).toString());
Shared Instructions Indicate the result of the snippet of co…
Shared Instructions Indicate the result of the snippet of code, assuming that it is in a main method of a class. More specifically, you must indicate one of the following: the output of the code, if the code compiles and runs without errors which statement(s) don’t compile (line #s, first line is #1) and why, if the code doesn’t compile when put in a main method the type of runtime error and the statement that caused it (line #, first line is #1) if the code compiles but doesn’t run properly Shared Code public class W { // In W.java public String toString() { return “W”; } public String sW() { return “1”; } } public class X extends W { // In X.java public String toString() { return “X”; } public String sX() { return “2”; } } public class Y extends X {} // In Y.java public class Z extends W {} // In Z.java Unique Snippet W w = new Y(); System.out.print(w.sX());