Matcher 有 Java 中的 hasTransparentBounds()方法，示例
原文:https://www . geesforgeks . org/matcher-hastransparentbounds-method-in-Java-with-examples/
匹配器类的 hasTransparentBounds() 方法用于检查该匹配器是否有透明边界。通过透明边界，这意味着如果透明边界设置为真，匹配器将在区域边界之外匹配匹配模式以获得匹配。此方法返回一个表示相同内容的布尔值。
语法:
public boolean hasTransparentBounds()
参数:该方法不取参数。
返回值:这个方法返回一个布尔值，说明这个匹配器是否有透明边界
以下示例说明了 Matcher.hasTransparentBounds()方法:
例 1:
// Java code to illustrate hasTransparentBounds() method
import java.util.regex.*;
public class GFG {
public static void main(String[] args)
{
// Get the regex to be checked
String regex = "(Geeks)";
// Create a pattern from regex
Pattern pattern
= Pattern.compile(regex);
// Get the String to be matched
String stringToBeMatched
= "GeeksForGeeks Geeks for For Geeks Geek";
// Create a matcher for the input String
Matcher matcher
= pattern
.matcher(stringToBeMatched);
// Check if this matcher
// has transparent bounds or not
// using hasTransparentBounds() method
System.out.println("Does this matcher"
+ " has transparent bounds: "
+ matcher
.hasTransparentBounds());
}
}
输出:
Does this matcher has transparent bounds: false
例 2:
// Java code to illustrate hasTransparentBounds() method
import java.util.regex.*;
public class GFG {
public static void main(String[] args)
{
// Get the regex to be checked
String regex = "(F*F)";
// Create a pattern from regex
Pattern pattern
= Pattern.compile(regex);
// Get the String to be matched
String stringToBeMatched
= "GFGFGFGFGFGFGFGFGFG FGF GFG GFG FGF";
// Create a matcher for the input String
Matcher matcher
= pattern
.matcher(stringToBeMatched);
// set the transparent bounds to true
matcher = matcher
.useTransparentBounds(true);
// Check if this matcher
// has transparent bounds or not
// using hasTransparentBounds() method
System.out.println("Does this matcher"
+ " has transparent bounds: "
+ matcher
.hasTransparentBounds());
}
}
输出:
Does this matcher has transparent bounds: true
参考:https://docs . Oracle . com/javase/9/docs/API/Java/util/regex/matcher . html # hasTransparentBounds–
版权属于：月萌API www.moonapi.com，转载请注明出处
