Avoid Calendar class use

Metadata

ID: java-best-practices/avoid-calendar-creation

Language: Java

Severity: Warning

Category: Best Practices

Description

Creating instances of java.util.Calendar is expensive. Use alternatives that are less heavy and better in terms of performance.

Non-Compliant Code Examples

public class Main {
    public static void main(String[] args) {
        Date d = Calendar.getInstance().getTime();
        long ms = Calendar.getInstance().getTimeInMillis();
    }
}

Compliant Code Examples

public class Main {
    public static void main(String[] args) {
        Date d = new Date();
        long ms = System.currentTimeMillis();
    }
}