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Java DateTime, Calendar Exercises: Add some hours to the current time

Java DateTime, Calendar: Exercise-15 with Solution

Write a Java program to add some hours to the current time.

Sample Solution:

Java Code:

import java.time.*;
public class Exercise15 {
   public static void main(String[] args)
    {
      LocalTime time = LocalTime.now(); 
      // adding four hours
      LocalTime newTime = time.plusHours(4);
      System.out.println();
      System.out.println("Time after 2 hours : " + newTime);
      System.out.println();
    }
}

Sample Output:

Time after 2 hours : 20:54:14.640

N.B.: The result may varry for your system date and time.

Pictorial Presentation:

Java Exercises: Java DateTime, Calendar Exercises - Add some hours to the current time.

Flowchart:

Flowchart: Java DateTime, Calendar Exercises - Add some hours to the current time

Java Code Editor:

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Previous: Write a Java program to get the current local time.
Next: Write a Java program to get a date after 2 weeks.

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Java: Tips of the Day

Check if at least two out of three booleans are true:

Rather than writing:

if (someExpression) {
    return true;
} else {
    return false;
}

Write:

return someExpression;

As for the expression itself, something like this:

boolean atLeastTwo(boolean a, boolean b, boolean c) {
    return a ? (b || c) : (b && c);
}

or this (whichever you find easier to grasp):

boolean atLeastTwo(boolean a, boolean b, boolean c) {
    return a && (b || c) || (b && c);
}

Ref: https://bit.ly/2OYPQD7