Java 中的 RuleBasedCollator hashCode()方法,示例
原文:https://www . geesforgeks . org/rulesbasedcollator-hashcode-method-in-Java-with-example/
类的 hashCode() 方法用于获取这个 Collator 对象的 hashCode。 语法:
public abstract int hashCode()
参数:此方法不接受任何参数。 返回值:该方法以整数格式返回哈希码值。 以下是举例说明 hashCode() 方法: 例 1:
Java 语言(一种计算机语言,尤用于创建网站)
// Java program to demonstrate
// hashCode() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
try {
// Creating and initializing new simple rule
String simple = "< a < b < c < d";
// Creating and initializing
// new RuleBasedCollator Object
RuleBasedCollator col
= new RuleBasedCollator(simple);
// getting hashCode of this object
// using hashCode() method
int hash = col.hashCode();
// display result
System.out.println("hashCode is :- "
+ hash);
}
catch (ClassCastException e) {
System.out.println("Exception thrown : "
+ e);
}
catch (ParseException e) {
System.out.println("Exception thrown : "
+ e);
}
}
}
Output:
hashCode is :- 1882448026
例 2:
Java 语言(一种计算机语言,尤用于创建网站)
// Java program to demonstrate
// hashCode() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
try {
// Creating and initializing new simple rule
String simple = "< a < c & a < b";
// Creating and initializing
// new RuleBasedCollator Object
RuleBasedCollator col
= new RuleBasedCollator(simple);
// getting hashCode of this object
// using hashCode() method
int hash = col.hashCode();
// display result
System.out.println("hashCode is :- "
+ hash);
}
catch (ClassCastException e) {
System.out.println("Exception thrown : "
+ e);
}
catch (ParseException e) {
System.out.println("Exception thrown : "
+ e);
}
}
}
Output:
hashCode is :- 2022902017
参考:https://docs . Oracle . com/javase/9/docs/API/Java/text/rulesbasedcollator . html # hashCode–
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