Java LocalDate类| 带示例的get（）方法

不念不忘少年蓝@ 2023-03-05 15:55 26阅读 0赞

## LocalDate类的get()方法 **(**LocalDate Class get() method**)** ##

*  **get() method** is available in java.time package.
    
    **get()方法**在java.time包中可用。
 *  **get() method** is used to get the value for the given field from this LocalDate object.
    
    **get()方法**用于从此LocalDate对象获取给定字段的值。
 *  **get() method** is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
    
    **get()方法**是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。
 *  **get() method** may throw an exception at the time of returning value for the given field.
    
    在返回给定字段的值时， **get()方法**可能会引发异常。
    
     *  **DateTimeException**: This exception may throw when the given field couldn’t be generated.**DateTimeException** ：当无法生成给定字段时，可能引发此异常。
     *  **UnsupportedTemporalTypeException**: This exception may throw when the given field is unsupported.**UnsupportedTemporalTypeException** ：当不支持给定字段时，可能引发此异常。
     *  **ArithmeticException**: This exception may throw when the calculated result exceeds the limit.**ArithmeticException** ：当计算结果超出限制时，可能引发此异常。

**Syntax:**

**句法：**

public int get(TemporalField t_field);

**Parameter(s):**

**参数：**

*  TemporalField t\_field – represents the temporal field of the returned value.
    
    TemporalField t\_field –表示返回值的时间字段。

**Return value:**

**返回值：**

The return type of this method is int, it returns the value for the given temporal field from this LocalDate.

此方法的返回类型为int ，它从此LocalDate返回给定时间字段的值。

**Example:**

**例：**

// Java program to demonstrate the example 
    // of get(TemporalField t_field) method 
    // of LocalDate
    
    import java.time.*;
    import java.time.temporal.*;
    
    public class GetOfLocalDate {
        
        public static void main(String args[]) {
        
            // Instantiates two LocalDate
            LocalDate l_da1 = LocalDate.parse("2007-04-04");
            LocalDate l_da2 = LocalDate.now();
    
            // Display l_da1,l_da2
            System.out.println("LocalDate l_da1 and l_da2: ");
            System.out.println("l_da1: " + l_da1);
            System.out.println("l_da2: " + l_da2);
    
            System.out.println();
    
            // Here, this method gets the value
            // for the given field YEAR
            int get_val = l_da1.get(ChronoField.YEAR);
    
            // Display get_val
            System.out.println("l_da1.get(ChronoField.YEAR): " + get_val);
    
            // Here, this method gets the value 
            // for the given field DAY_OF_WEEK
            get_val = l_da2.get(ChronoField.DAY_OF_WEEK);
    
            // Display get_val
            System.out.println("l_da2.get(ChronoField.DAY_OF_WEEK): " + get_val);
        }
    }

**Output**

**输出量**

LocalDate l_da1 and l_da2: 
    l_da1: 2007-04-04
    l_da2: 2020-05-29
    
    l_da1.get(ChronoField.YEAR): 2007
    l_da2.get(ChronoField.DAY_OF_WEEK): 5

> 翻译自: [https://www.includehelp.com/java/localdate-get-method-with-example.aspx][https_www.includehelp.com_java_localdate-get-method-with-example.aspx]

[https_www.includehelp.com_java_localdate-get-method-with-example.aspx]: https://www.includehelp.com/java/localdate-get-method-with-example.aspx