Which of these is a feature the Java programming language al

Which of these is a feature the Java programming language allowing you to debug logic errors?

a package

an assertion

an interface

none of the above

Solution

a package
an assertion
an interface
none of the above

Answer: an assertion

An assertion is a statement in the Java programming language that enables you to test your assumptions about your program. For example, if you write a method that calculates the speed of a particle, you might assert that the calculated speed is less than the speed of light.

Each assertion contains a boolean expression that you believe will be true when the assertion executes. If it is not true, the system will throw an error. By verifying that the boolean expression is indeed true, the assertion confirms your assumptions about the behavior of your program, increasing your confidence that the program is free of errors.

Advantage of Assertion:
   It provides an effective way to detect and correct programming errors.

Syntax of using Assertion:
There are two ways to use assertion. First way is:
       assert expression;
   and second way is:
       assert expression1 : expression2;
      
Simple Example of Assertion in java:

import java.util.Scanner;
  
class AssertionExample{
public static void main( String args[] ){
  
Scanner scanner = new Scanner( System.in );
System.out.print(\"Enter ur age \");
  
int value = scanner.nextInt();
assert value>=18:\" Not valid\";
  
System.out.println(\"value is \"+value);
}   
}