爪哇番石榴| Chars.compare()方法与示例

原文:https://www . geesforgeks . org/Java-guava-chars-compare-method-with-examples/

Chars.compare() 番石榴的 Chars 类的方法用于比较两个指定的 char 值。这些值作为参数传递,比较的结果是第一个值和第二个值的差值。因此它可以是正的、零的或负的。

语法:

public static int compare(char a, char b)

参数:该方法接受两个参数:

  • a: 是第一个要比较的 char 对象。
  • b: 是第二个要比较的 char 对象。

返回类型:这个方法返回一个 int 值。它返回:

  • 如果“a”等于“b”,则为 0,
  • 正值“a”大于“b”,
  • 负值“a”小于“b”

异常:该方法没有任何异常。

例 1:

// Java code to show implementation of
// Guava's Chars.compare() method
import com.google.common.primitives.Chars;

class GFG {
    public static void main(String[] args)
    {
        char a = 'c';
        char b = 'c';

        // compare method in Char class
        int output = Chars.compare(a, b);

        // printing the output
        System.out.println("Comparing " + a
                           + " and " + b + " : "
                           + output);
    }
}

Output:

Comparing c and c : 0

例 2:

// Java code to show implementation of
// Guava's Chars.compare() method
import com.google.common.primitives.Chars;

class GFG {
    public static void main(String[] args)
    {
        char a = 'd';
        char b = 'D';

        // compare method in Char class
        int output = Chars.compare(a, b);

        // printing the output
        System.out.println("Comparing " + a
                           + " and " + b + " : "
                           + output);
    }
}

Output:

Comparing d and D : 32

例 3:

// Java code to show implementation of
// Guava's Chars.compare() method
import com.google.common.primitives.Chars;

class GFG {
    public static void main(String[] args)
    {
        char a = 'E';
        char b = 'c';

        // compare method in Char class
        int output = Chars.compare(a, b);

        // printing the output
        System.out.println("Comparing " + a
                           + " and " + b + " : "
                           + output);
    }
}

Output:

Comparing E and c : -30