Java中的 ChoiceFormat hashCode() 方法及示例
Java.text.ChoiceFormat类的hashCode()方法用于获取选择格式对象的哈希码。此哈希码值以整数形式返回。
句法:
public int hashCode()
参数:此方法不接受任何参数。
返回值:此方法以整数形式返回选择格式对象的哈希码。
以下是说明hashCode()方法的示例:
示例 1:
// 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 ChoiceFormat
ChoiceFormat cf
= new ChoiceFormat(
"4#wed| 5#thu | 6#fri | 7#sat");
// getting hashcode of ChoiceFormat object
// using hashCode() method
int hash = cf.hashCode();
// display the result
System.out.print("hashCode :- " + hash);
}
}
输出:
hashCode :- 113634
示例 2:
// 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 limit
double[] limit = { 1, 2, 3, 4 };
// creating and initializing format
String[] format
= { "add", "sub", "multiply", "divide" };
// creating and initializing ChoiceFormat
ChoiceFormat cf
= new ChoiceFormat(limit, format);
// getting hashcode of ChoiceFormat object
// using hashCode() method
int hash = cf.hashCode();
// display the result
System.out.print("hashCode :- " + hash);
}
}
输出:
hashCode :- -1331463043
参考: https://docs.oracle.com/javase/9/docs/api/ Java/text/ChoiceFormat.html#hashCode–