Java番石榴 |带有示例的 Doubles.compare() 方法
Guava 的 Doubles 类的Doubles.compare()方法用于比较两个指定的双精度值。这些值作为参数传递,比较结果作为第一个值和第二个值的差值。因此,它可以是正数、零或负数。
句法:
public static int compare(double a, double b)
参数:此方法接受两个参数:
- a:这是要比较的第一个双重对象。
- b:这是要比较的第二个双重对象。
返回值:此方法返回一个 int 值。它返回:
- 0 如果“a”等于“b”,
- 如果“a”大于“b”,则为正值,
- 如果“a”小于“b”,则为负值
异常:该方法不抛出任何异常。
下面的程序说明了 Double.compare() 方法:
示例 1:
// Java code to show implementation of
// Guava's Doubles.compare() method
import com.google.common.primitives.Doubles;
class GFG {
public static void main(String[] args)
{
double a = 4.0;
double b = 4.0;
// compare method in Double class
int output = Doubles.compare(a, b);
// printing the output
System.out.println("Comparing " + a
+ " and " + b + " : "
+ output);
}
}
输出:
Comparing 4.0 and 4.0 : 0
示例 2:
// Java code to show implementation of
// Guava's Doubles.compare() method
import com.google.common.primitives.Doubles;
class GFG {
public static void main(String[] args)
{
double a = 5.6;
double b = 4.2;
// compare method in Double class
int output = Doubles.compare(a, b);
// printing the output
System.out.println("Comparing " + a
+ " and " + b + " : "
+ output);
}
}
输出:
Comparing 5.6 and 4.2 : 1
示例 3:
// Java code to show implementation of
// Guava's Doubles.compare() method
import com.google.common.primitives.Doubles;
class GFG {
public static void main(String[] args)
{
double a = 3.6;
double b = 7.4;
// compare method in Double class
int output = Doubles.compare(a, b);
// printing the output
System.out.println("Comparing " + a
+ " and " + b + " : "
+ output);
}
}
输出:
Comparing 3.6 and 7.4 : -1