Question

How to match any character in regular expression with Java

Answer 1

// use the . (dot) 

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MyClass {
    public static void main(String args[]) {
        Pattern p = Pattern.compile("x.z");

        Matcher m = p.matcher("xyz");

        if (m.matches()) {
            System.out.println("Found");
        } else {
            System.out.println("Not found");
        }
    }
}



/*
run:

Found

*/

 

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Answer 2

// use the . (dot) 

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MyClass {
    public static void main(String args[]) {
        System.out.println(Pattern.compile("A.B").matcher("AXB").matches());
        System.out.println(Pattern.compile("A.B").matcher("AWB").matches());
    }
}



/*
run:

true
true

*/

 

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Answer 3

// use the . (dot) 

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MyClass {
    public static void main(String args[]) {
        System.out.println(Pattern.compile("X[abc]Y").matcher("XaY").matches());   
        System.out.println(Pattern.compile("X[abc]Y").matcher("XbY").matches());   
        System.out.println(Pattern.compile("X[abc]Y").matcher("XcY").matches());   
        
        System.out.println(Pattern.compile("X[abc]Y").matcher("XabY").matches());   
    }
}



/*
run:

true
true
true
false

*/

 

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