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How to format a date using the Gson library in Java?
A Gson is a JSON library for Java, which is created by Google. By using Gson, we can generate JSON and convert JSON to java objects. We can create a Gson instance by creating a GsonBuilder instance and calling with the create() method. The GsonBuilder().setDateFormat() method configures Gson to serialize Date objects according to the pattern provided.
Syntax
public GsonBuilder setDateFormat(java.lang.String pattern)
Example
import java.util.Date;
import com.google.gson.*;
public class DateformatTest {
public static void main(String[] args) {
Employee emp = new Employee(115, "Surya", new Date(), 25000.00);
Gson gson = new GsonBuilder().setDateFormat("yyyy-MM-dd").create();
String result = gson.toJson(emp);
System.out.println(result);
}
}
// Employee class
class Employee {
private int id;
private String name;
private Date doj;
private double salary;
public Employee(int id, String name, Date doj, double salary) {
this.id = id;
this.name = name;
this.doj = doj;
this.salary = salary;
}
}Output
{"id":115,"name":"Surya","doj":"2019-09-26","salary":25000.0}
Updated on: 04-Jul-2020
4K+ Views
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