Java中的 MessageFormat hashCode() 方法与示例
Java.text.MessageFormat类的hashCode()方法用于获取此消息格式对象的哈希码。
句法:
public int hashCode()
参数:此方法不接受任何参数作为参数。
返回值:此方法返回此消息格式对象的哈希码。
以下是说明hashCode()方法的示例:
示例 1:
Java
// Java program to demonstrate
// hashCode() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
// creating and initializing MessageFormat
MessageFormat mf
= new MessageFormat("{0, number, #}, {2, date, #.#}, {4, time}");
// getting hash code
// for this MessageFormat Object
// using hashCode() method
int hash = mf.hashCode();
// display the result
System.out.println("Hashcode is : " + hash);
}
}
Java
// Java program to demonstrate
// hashCode() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
// creating and initializing MessageFormat
MessageFormat mf
= new MessageFormat("{0, number, #}, {4, time}");
// getting hash code
// for this MessageFormat Object
// using hashCode() method
int hash = mf.hashCode();
// display the result
System.out.println("Hashcode is : " + hash);
}
}
输出:
Hashcode is : 1408
示例 2:
Java
// Java program to demonstrate
// hashCode() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
// creating and initializing MessageFormat
MessageFormat mf
= new MessageFormat("{0, number, #}, {4, time}");
// getting hash code
// for this MessageFormat Object
// using hashCode() method
int hash = mf.hashCode();
// display the result
System.out.println("Hashcode is : " + hash);
}
}
输出:
Hashcode is : 44
参考: https://docs.oracle.com/javase/9/docs/api/ Java/text/MessageFormat.html#hashCode–