Analyze the following code carefully.public class Test { int x; public Test(String t) { System.out.println("Test"); } public static void main(String[] args) { Test test = new Test(); System.out.println(test.x); }}Group of answer choicesThe program has a compile error because you cannot create an object from the class that defines the object.The program has a compile error because x has not been initialized.The program has a compile error because System.out.println method cannot be invoked from the constructor.The program has a compile error because Test does not have a default construc
Question
Analyze the following code carefully.public class Test { int x; public Test(String t) { System.out.println("Test"); } public static void main(String[] args) { Test test = new Test(); System.out.println(test.x); }}Group of answer choicesThe program has a compile error because you cannot create an object from the class that defines the object.The program has a compile error because x has not been initialized.The program has a compile error because System.out.println method cannot be invoked from the constructor.The program has a compile error because Test does not have a default construc
Solution
The program has a compile error because Test does not have a default constructor.
In the provided code, a parameterized constructor is defined in the Test class. When a parameterized constructor is defined, the Java compiler does not provide a default constructor. Therefore, when trying to create an object of the Test class in the main method without passing any arguments, the compiler throws an error because it cannot find a default constructor.
Similar Questions
Analyze the following code carefully. Please select all that apply. public class Test { public static void main(String[] args) { A a = new A(); a.print(); } } class A { String s; A(String s) { this.s = s; } void print() { System.out.println(s); } } Group of answer choicesThe program has a compile error because class A is not a public class.The program has a compile error because class A does not have a default constructor.The program compiles and runs fine and prints nothing.The program would compile and run if you change A a = new A() to A a = new A("5").
Analyze the following code carefully. Please select the one that applies.public class Test { public static void main(String[] args) { A a = new A(); a.print(); }}class A { String s; A(String s) { this.s = s; }void print() { System.out.println(s); }}Group of answer choicesThe program would compile and run if you change A a = new A() to A a = new A(5).The program has a compile error because class A does not have a default constructor.The program compiles and runs fine and prints nothing.The program has a compile error because class A is not a public class.
Analyze the following code. Please select all that apply. public class Test { public static void main(String[] args) { Object a1 = new A(); Object a2 = new Object(); System.out.println(a1); System.out.println(a2); } } class A { int x; @Override public String toString() { return "A's x is " + x; } } Group of answer choicesThe program cannot be compiled, because System.out.println(a1) is wrong and it should be replaced by System.out.println(a1.toString());When executing System.out.println(a1), the toString() method in the Object class is invoked.When executing System.out.println(a2), the toString() method in the Object class is invoked.When executing System.out.println(a1), the toString() method in the A class is invoked.
Analyze the following code carefully. Choose a statement from the options below. class TempClass { int i; public void TempClass(int j) { int i = j; }}public class C {public static void main(String[] args) { TempClass temp = new TempClass(2); }}Group of answer choicesThe program has a compile error because TempClass does not have a constructor with an int argument.The program compiles and runs fine.The program has a compile error because TempClass does not have a constructor with an int argument.The program compiles fine, but it does not run because class C is not public.
Analyze the following code and choose two correct statements from below. public class Test extends A { public static void main(String[] args) { Test t = new Test(); t.print(); } } class A { String s; A(String s) { this.s = s; } public void print() { System.out.println(s); } } Group of answer choicesThe program does not compile because Test does not have a default constructor Test().The program has an implicit default constructor Test(), but it cannot be compiled, because its super class does not have a default constructor. The program would compile if the constructor in the class A were removed.The program would compile if a default constructor A(){ } is added to class A explicitly.The program compiles, but it has a runtime error due to the conflict on the method name print.
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