Answer:
Option 1 and optionn 3
these are the correct options:
The program would compile and run if you change A a=new A() to A a=new A("5").
The program has a compilation errorbecause class A does not have a no - arguments constructor.
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class Test public static void main(String args) { Aa=new AO: a.printo: class A private String s;...
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....
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 { 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.
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...
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"):...
1. public class Threads5 { 2. public static void main (String[l args) 3. new Thread(new Runnable() 4. public void run() 5. System.out.print("bar"); 6. start(; 7 What is the result? A. Compilation fails. B. An exception is thrown at runtime. C. The code executes normally and prints "bar". D. The code executes normally, but nothing prints
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...
Consider the following codes: public class TestThread extends Thread { public static void main(String[] args) { TestThread thread = new TestThread(); } @Override public void run() { printMyName(); } private void printMyName() { System.out.println("Thread is running"); } } Test Stem / Question Choices 1: What method should you invoke to start the thread TestThread? A: start() B: run() C: No. Thread will run automatically when executed. D: TestThread is not...
Analyze the following code: class Test ( private int t static int x; public void method() Test test new Test); System.out.println (x); a. The variable t is not initialized and therefore causes er The program compiles fine but has runtime errors because main method. cThe variable t is private and therefore cannot be accessed in t method. The program compiles and runs fine
c) public class Test { public static void main(String[] args) { T t1 = new T(); T t2 = new T(); System.out.println("t1's i = " + t1.i + " and j = " + t1.j); System.out.println("t2's i = " + t2.i + " and j = " + t2.j); } } class T { static int i = 0; int j = 0; T() { i++; j = 1; } } Why is t1's i = 2 ? It should be...