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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.

Question

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.

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Solution

The program has a compile error because class A does not have a default constructor.

Here's why:

In Java, if you don't provide any constructor in your class, compiler inserts default constructor for you, but if you declare any constructor (in your case you have a parameterized constructor in class A), compiler does not insert the default constructor.

In your main method, you're trying to create an object of class A using default constructor which is not available in the class definition. Hence, it will throw a compile time error.

To fix this, you can either provide a default constructor in class A or you need to pass a String while creating object of class A because as per the current code, class A only has a parameterized constructor which accepts a String.

This problem has been solved

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