Guava – Longs.compare()方法与实例

Guava – Longs.compare()方法与实例

Guava的Longs类的Longs.compare()方法是用来比较两个指定的长值。这些值被作为参数传递,比较的结果是第一个值和第二个值的差。因此,它可以是正数、零或负数。

语法:

public static int compare(long a, long b)

参数: 这个方法接受两个参数。

  • a: 这是第一个要比较的长对象。
  • b: 这是第二个要比较的长对象。

返回类型: 该方法返回一个int值。它返回:

  • 如果’a’等于’b’,则返回0;
  • 一个正值’a’大于’b’,
  • 一个负值’a’小于’b’

异常: 该方法没有任何异常。

示例1:

// Java code to show implementation of
// Guava's Longs.compare() method
import com.google.common.primitives.Longs;
  
class GFG {
    public static void main(String[] args)
    {
        long a = 5L;
        long b = 5L;
  
        // compare method in Long class
        int output = Longs.compare(a, b);
  
        // printing the output
        System.out.println("Comparing " + a
                           + " and " + b + " : "
                           + output);
    }
}

输出:

Comparing 5 and 5 : 0

示例2:

// Java code to show implementation of
// Guava's Longs.compare() method
import com.google.common.primitives.Longs;
  
class GFG {
    public static void main(String[] args)
    {
        long a = 5L;
        long b = 4L;
  
        // compare method in Long class
        int output = Longs.compare(a, b);
  
        // printing the output
        System.out.println("Comparing " + a
                           + " and " + b + " : "
                           + output);
    }
}

输出:

Comparing 5 and 4 : 1

示例3:

// Java code to show implementation of
// Guava's Longs.compare() method
import com.google.common.primitives.Longs;
  
class GFG {
    public static void main(String[] args)
    {
        long a = 4L;
        long b = 5L;
  
        // compare method in Long class
        int output = Longs.compare(a, b);
  
        // printing the output
        System.out.println("Comparing " + a
                           + " and " + b + " : "
                           + output);
    }
}

输出:

Comparing 4 and 5 : -1

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