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Program: How to remove multiple spaces with a single space with in a string?


Description:

Below example gives sample code for replacing multiple spaces into single space. It covers tab, new line, any kind of spaces replaces with single space.


Code:
package com.java2novice.regex;

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

public class MyPatternReplace {

	public String replaceWithPattern(String str,String replace){
		
		Pattern ptn = Pattern.compile("\\s+");
		Matcher mtch = ptn.matcher(str);
		return mtch.replaceAll(replace);
	}
	
	public static void main(String a[]){
		String str = "My    name	is  kingkon.  ";
		MyPatternReplace mpr = new MyPatternReplace();
		System.out.println(mpr.replaceWithPattern(str, " "));
	}
}

Output:
My name is kingkon. 
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List Of Regular Expression Sample Programs:

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  2. Simple java regex using Pattern and Matcher classes.
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  6. How to remove multiple spaces with a single space with in a string?
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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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