Java 中的 IntStream anyMatch()，示例
原文:https://www . geesforgeks . org/int stream-any match-Java-examples/
int stream any match(int predicate 谓词)返回此流的任何元素是否与提供的谓词匹配。如果不是确定结果所必需的，它可能不会计算所有元素上的谓词。这是一次 短路端子操作。 如果终端操作在无限输入时可能在有限时间内终止，则该操作为短路。 语法:****
boolean anyMatch(IntPredicate predicate)
Where, IntPredicate represents a predicate (boolean-valued function)
of one int-valued argument and the function returns true if any
elements of the stream match the provided predicate,
otherwise false.
注意:如果流为空，则返回 false，不计算谓词。
示例 1 : anyMatch()函数检查列表中的任何元素是否满足给定条件。
// Java code for IntStream anyMatch
// (Predicate predicate) to check whether
// any element of this stream match
// the provided predicate.
import java.util.*;
import java.util.stream.IntStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// Creating an IntStream
IntStream stream = IntStream.of(1, 2, 3, 4, 5, 6);
// Stream anyMatch(Predicate predicate)
boolean answer = stream.anyMatch(num -> (num - 5) > 0);
// Displaying the result
System.out.println(answer);
}
}
输出:
true
例 2 : anyMatch()函数检查流中任意元素的平方根是否大于 8。
// Java code for IntStream anyMatch
// (Predicate predicate) to check whether
// any element of this stream match
// the provided predicate.
import java.util.*;
import java.util.stream.IntStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// Creating an IntStream
IntStream stream = IntStream.of(10, 20, 30, 40, 50);
// Stream anyMatch(Predicate predicate)
boolean answer = stream.anyMatch(num -> Math.sqrt(num) > 8);
// Displaying the result
System.out.println(answer);
}
}
输出:
false
示例 3 : anyMatch()函数显示如果流为空，则返回 false。
// Java code for IntStream anyMatch
// (Predicate predicate) to check whether
// any element of this stream match
// the provided predicate.
import java.util.*;
import java.util.stream.IntStream;
class GFG {
// Driver code
public static void main(String[] args)
{
// Creating an empty IntStream
IntStream stream = IntStream.empty();
boolean answer = stream.anyMatch(num -> true);
// Displaying the result
System.out.println(answer);
}
}
输出:
false
版权属于：月萌API www.moonapi.com，转载请注明出处
