Java中的字符.hashCode() 和示例
Java.lang。 字符.hashCode() 是Java中的内置方法,它返回此字符的哈希码。返回的哈希码等于调用 charValue() 的结果。
句法:
public int hashCode()
This function does not accepts any parameter.
返回值:此方法返回此字符的哈希码值。
下面的程序说明了Java.lang。字符.hashCode()函数:
程序 1 :
// Java program to demonstrate the
// function when the value passed in the parameter
// is a character
import java.lang.*;
public class Gfg {
public static void main(String[] args)
{
// parameter ch
char ch = 'B';
// assigns character values
Character c = Character.valueOf(ch);
// assign hashcodes of c1, c2 to i1, i2
int i = c.hashCode();
// prints the character values
System.out.println("Hashcode of " + ch + " is " + i);
}
}
输出:
Hashcode of B is 66
方案二:
// Java program to demonstrate the
// function when the value passed in the parameter
// is a number
import java.lang.*;
public class Gfg {
public static void main(String[] args)
{
// parameter ch
char ch = '6';
// assigns character values
Character c = Character.valueOf(ch);
// assign hashcodes of ch
int i = c.hashCode();
// prints the character values
System.out.println("Hashcode of " + ch + " is " + i);
}
}
输出:
Hashcode of 6 is 54