java convert string to localdate

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// solution 1
String strDate = "24/12/2019";
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy");
LocalDate localDate = LocalDate.parse(strDate, formatter); // 2019-12-24

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// Using DateTimeFormatter and LocalDate.parse()

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class Example {

    public static void main(String[] args) {
        String strDate = "24/12/2019";
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy");
        LocalDate localDate = LocalDate.parse(strDate, formatter);
        System.out.println(localDate); // 2019-12-24
    }
}

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// Format - yyyy-mm-dd

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class LocalDateExample_ISO_LOCAL_DATE {

    public static void main(String[] args) {

        DateTimeFormatter formatter = DateTimeFormatter.ISO_LOCAL_DATE;
        String date = "2019-10-12";
        LocalDate localDate = LocalDate.parse(date, formatter);

        System.out.println(date);
        System.out.println(localDate);
        System.out.println(formatter.format(localDate));
    }
}

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// Format - yyyymmdd

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class LocalDateExample_BASIC_ISO_DATE {

    public static void main(String[] args) {

        DateTimeFormatter formatter = DateTimeFormatter.BASIC_ISO_DATE;
        String date = "20191012";
        LocalDate localDate = LocalDate.parse(date, formatter);

        System.out.println(localDate);
        System.out.println(formatter.format(localDate));
    }
}

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// Format - E, MMM dd yyyy

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class LocalDateExample {

    public static void main(String[] args) {

        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("E, MMM dd yyyy");
        String date = "Sat, Oct 12 2019";
        LocalDate localDate = LocalDate.parse(date, formatter);

        System.out.println(localDate);
        System.out.println(formatter.format(localDate));
    }
}

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// Format - EEEE, MMM dd yyyy

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class LocalDateExample {

    public static void main(String[] args) {

        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("EEEE, MMM dd yyyy");
        String date = "Saturday, Oct 12 2019";
        LocalDate localDate = LocalDate.parse(date, formatter);

        System.out.println(localDate);
        System.out.println(formatter.format(localDate));
    }
}

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// Format - yyyy/MM/dd

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class LocalDateExample {

    public static void main(String[] args) {

        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy/MM/dd");
        String date = "2019/10/12";
        LocalDate localDate = LocalDate.parse(date, formatter);

        System.out.println(localDate);
        System.out.println(formatter.format(localDate));
    }
}

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// Format - yyyy-MM-dd

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class LocalDateExample {

    public static void main(String[] args) {

        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
        String date = "2019-10-12";
        LocalDate localDate = LocalDate.parse(date, formatter);

        System.out.println(localDate);
        System.out.println(formatter.format(localDate));
    }
}

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// Format - yyyy-MM-dd

import java.time.LocalDate;

public class LocalDateExample_DEFAULT {

    public static void main(String[] args) {

        // default - parsed using DateTimeFormatter.ISO_LOCAL_DATE
        // 2019-10-12
        String date = "2019-10-12";

        LocalDate localDate = LocalDate.parse(date);

        System.out.println("String date: ");
        System.out.println(date);

        System.out.println("LocalDate: ");
        System.out.println(localDate);
    }
}

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// Format - yyyy-MM-dd

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class LocalDateExample_ISO_DATE {

    public static void main(String[] args) {

        DateTimeFormatter formatter = DateTimeFormatter.ISO_DATE;
        String date = "2019-10-12";
        LocalDate localDate = LocalDate.parse(date, formatter);

        System.out.println(localDate);
        System.out.println(formatter.format(localDate));
    }
}

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// Format - yyyy-MM-dd+hh:mm

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class LocalDateExample_ISO_DATE_WITH_ZONE {

    public static void main(String[] args) {

        DateTimeFormatter formatter = DateTimeFormatter.ISO_DATE;
        String date = "2019-10-12+01:00";
        LocalDate localDate = LocalDate.parse(date, formatter);

        System.out.println(localDate);
        System.out.println(formatter.format(localDate));
    }
}

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// String to LocalDate with examples

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class ConvertStringToLocalDateExamples {

    public static void main(String[] args) {

        System.out.println("# Example 1");
        // default - parsed using DateTimeFormatter.ISO_LOCAL_DATE
        // 2019-10-12
        System.out.println(LocalDate.parse("2019-10-12"));

        System.out.println("# Example 2");
        // 2019-10-12
        System.out.println(LocalDate.parse("2019-10-12",
                DateTimeFormatter.ISO_LOCAL_DATE));

        System.out.println("# Example 3");
        // 2019-10-12
        System.out.println(LocalDate.parse("20191012",
                DateTimeFormatter.BASIC_ISO_DATE));

        System.out.println("# Example 4");
        // 2019-10-12
        System.out.println(LocalDate.parse("Sat, Oct 12 2019",
                DateTimeFormatter.ofPattern("E, MMM dd yyyy")));

        System.out.println("# Example 5");
        // 2019-10-12
        System.out.println(LocalDate.parse("Saturday, Oct 12 2019",
                DateTimeFormatter.ofPattern("EEEE, MMM dd yyyy")));

        System.out.println("# Example 6");
        // 2019-10-12
        System.out.println(LocalDate.parse("2019/10/12",
                DateTimeFormatter.ofPattern("yyyy/MM/dd")));

        System.out.println("# Example 7");
        // 2019-10-12
        System.out.println(LocalDate.parse("2019-10-12",
                DateTimeFormatter.ofPattern("yyyy-MM-dd")));

        System.out.println("# Example 8");
        // 2019-10-12
        System.out.println(LocalDate.parse("2019-10-12",
                DateTimeFormatter.ISO_DATE));

        System.out.println("# Example 9");
        // 2019-10-12
        System.out.println(LocalDate.parse("2019-10-12+01:00",
                DateTimeFormatter.ISO_DATE));
    }
}