Homework Answers
A) False
Because, even though t is not initialized it wont cause errors to program. There is no need to initialize instance variables.
B)True
Developers do not use main method for web applications, but for stand alone application (i.e.. to test) we need main method.
C)False
t variable can be accessed in main method by creating object. if it is in same class we can access private data members.
D)False
It will give warning that nosuchmethod :-main . we can run java program by using static blocks without main method.however after executing static block it will throw error. To avoid error use system.exit(0) after print statement code.
static{
print("xxxxxxxxxx");
System.exit(0);
}
Thank you......
Add Answer to:
Analyze the following code: class Test ( private int t static int x; public void method()...
Analyze the following code: public class Test { private int t; public static void main(String[] args)...
Analyze the following code: public class Test { private int t; public static void main(String[] args) { int x; System.out.println(t); } } The variable t is private and therefore cannot be accessed in the main method. The program compiles and runs fine. t is non-static and it cannot be referenced in a static context in the main method. The variablet is not initialized and therefore causes errors. The variable x is not initialized and therefore causes errors.
Analyze the following code: public class Test { private int t; public static void main(String[] args)...
Analyze the following code: public class Test { private int t; public static void main(String[] args) { int x; System.out.println(t); } } t is non-static and it cannot be referenced in a static context in the main method. The program compiles and runs fine. The variable t is not initialized and therefore causes errors. The variable x is not initialized and therefore causes errors.
Analyze the following code: public class Test { public int x; public Test(String t) { System.out.println("Test");...
Analyze the following code: public class Test { public int x; public Test(String t) { System.out.println("Test"); public static void main(String[] args) { Test test: System.out.println(test.x); The program has a compile error because Test class does not have a default constructor The program has a compile error because test is not initialized OO The program has a compile error because x has not been initialized The program has a runtime NullPointerException while executing test.x because test is a null reference and...
1. Analyze the following code: public class Test implements Runnable { public static void main(String[] args) { Thread t = new Thread(this); t.start(); } public void run() { System....
1. Analyze the following code: public class Test implements Runnable { public static void main(String[] args) { Thread t = new Thread(this); t.start(); } public void run() { System.out.println("test"); } } 1. The code compiles but will not print anything since t does not invoke the run method. 2. The code will not compile since you cannot invoke "this" in a static method. 3. The program compiles, runs, and prints tests on the console. 2. What will the following example...
class Test public static void main(String args) { Aa=new AO: a.printo: class A private String s;...
class Test public static void main(String args) { Aa=new AO: a.printo: class A private String s; public A (String news) { 8 = news: public void print { System.out.println(s): The program would compile and run if you change A a new Alto Aa=new A('5'). The program has a compilation error because the instance variables in class A is not public. The program has a compilation error because class A does not have a no-arguments constructor The program compiles and runs...
public class Test { private static int i =0; private static int j =0; public static...
public class Test { private static int i =0; private static int j =0; public static void main(String[] args) { int i = 2; int k = 3; { int j =3; System.out.println("i + j is : " + i + j); } k = i + j; System.out.println("K is " + k ); System.out.println("K is " + j); } } why is the output i + j = 23 K =2 K =0 Please explain a step by step...
Analyze the following code in these 2 Java classes and choose the correct statement below: public...
Analyze the following code in these 2 Java classes and choose the correct statement below: public class Test { public static void main(String[] args) { Time1 time = new Time1(); time.print(); } } public class Time1 { private String showTime; public Time1(String newTime) { showTime = newTime; } public void print() { System.out.printf("%s", showTime); } } a. The program will compile and run if you change: Time1 time = new Time1(); → Time1 time = new Time1("5:15"); b....
must provide the following public interface: public static void insertSort(int [] arr); public static void selectSort(int...
must provide the following public interface: public static void insertSort(int [] arr); public static void selectSort(int [] arr); public static void quickSort(int [] arr); public static void mergeSort(int [] arr); The quick sort and merge sort must be implemented by using recursive thinking. So the students may provide the following private static methods: //merge method //merge two sorted portions of given array arr, namely, from start to middle //and from middle + 1 to end into one sorted portion, namely,...
Examine the following class definition: public class Date private int year; private int month; private int...
Examine the following class definition: public class Date private int year; private int month; private int day; public Date() { ...) public void set (int x, int y, int z) { ...) public int getYear() { ...) // returns year public int getMonth() { } // returns month public int get Day () { ...) // returns day //more methods here -- 1 Which of the following statements in a client program correctly prints out the day of the object...
What is the output of following program: public class Test{ public static void main(String[] args) {...
What is the output of following program: public class Test{ public static void main(String[] args) { A a = new A(): a method B(): } } class A{ public A(){ System out println("A's constructor is executed"): } public void method(){ System out printin ("methodA is executed"): } public void methodAB(){ System out printin ("As methodAB is executed"): } } class B extends A { private int num = 0: public B (){ super(): System out printin ("B's constructor is executed"):...
Analyze the following code: public class Test { private int t; public static void main(String[] args) { int x; System.out.println(t); } } The variable t is private and therefore cannot be accessed in the main method. The program compiles and runs fine. t is non-static and it cannot be referenced in a static context in the main method. The variablet is not initialized and therefore causes errors. The variable x is not initialized and therefore causes errors.
Analyze the following code: public class Test { private int t; public static void main(String[] args) { int x; System.out.println(t); } } t is non-static and it cannot be referenced in a static context in the main method. The program compiles and runs fine. The variable t is not initialized and therefore causes errors. The variable x is not initialized and therefore causes errors.
Analyze the following code: public class Test { public int x; public Test(String t) { System.out.println("Test"); public static void main(String[] args) { Test test: System.out.println(test.x); The program has a compile error because Test class does not have a default constructor The program has a compile error because test is not initialized OO The program has a compile error because x has not been initialized The program has a runtime NullPointerException while executing test.x because test is a null reference and...
class Test public static void main(String args) { Aa=new AO: a.printo: class A private String s; public A (String news) { 8 = news: public void print { System.out.println(s): The program would compile and run if you change A a new Alto Aa=new A('5'). The program has a compilation error because the instance variables in class A is not public. The program has a compilation error because class A does not have a no-arguments constructor The program compiles and runs...
Examine the following class definition: public class Date private int year; private int month; private int day; public Date() { ...) public void set (int x, int y, int z) { ...) public int getYear() { ...) // returns year public int getMonth() { } // returns month public int get Day () { ...) // returns day //more methods here -- 1 Which of the following statements in a client program correctly prints out the day of the object...
What is the output of following program: public class Test{ public static void main(String[] args) { A a = new A(): a method B(): } } class A{ public A(){ System out println("A's constructor is executed"): } public void method(){ System out printin ("methodA is executed"): } public void methodAB(){ System out printin ("As methodAB is executed"): } } class B extends A { private int num = 0: public B (){ super(): System out printin ("B's constructor is executed"):...
Most questions answered within 3 hours.
-
1. List the features used to classify leaf
types.
2. List some characteristics that are shared...
asked 33 seconds ago -
The three elements of Value Proposition, Key Customers, and
Capabilities operate within an environment. Which of...
asked 2 minutes ago -
Katelynn, a physician, earns $200,000 from her medical practice
in the current year. She receives $45,000...
asked 10 minutes ago -
Each row of the table below describes an aqueous solution at
25°C
.
The second column...
asked 14 minutes ago -
A horizontal wire is at y = 0. Current travels in the +x
direction. The magnetic...
asked 15 minutes ago -
Let X be a continuous random variable whose PDF is Let X be a
continuous random...
asked 36 minutes ago -
Martinez Company’s relevant range of production is 7,500 units
to 12,500 units. When it produces and...
asked 34 minutes ago -
A football with a mass of 1.2 kg is kicked from ground level to
a height...
asked 40 minutes ago -
Remember: Changes in supply determinants shift supply, and
changes in demand determinants shift demand. We say...
asked 38 minutes ago -
Why is the answer b), for this question? I came up with C) for
my incorrect...
asked 44 minutes ago -
Suppose that you know that in the population of full-time
employees in the United States, the...
asked 1 hour ago -
This experiment was designed originally to sample various meat and carcass quality
aspects of Ontario pigs...
asked 1 hour ago