JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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How to remove multiple spaces in a string in Java?


Description:

Below example shows how to remove multiple spaces from the given string.


Code:
package com.myjava.string;

import java.util.StringTokenizer;

public class MyStrRemoveMultSpaces {
    public static void main(String a[]){
        String str = "String    With Multiple      Spaces";
        StringTokenizer st = new StringTokenizer(str, " ");
        StringBuffer sb = new StringBuffer();
        while(st.hasMoreElements()){
            sb.append(st.nextElement()).append(" ");
        }
        System.out.println(sb.toString().trim());
    }
}

Example Output

String With Multiple Spaces

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Everything in java is an object, except primitives. Primitives are int, short, long, boolean, etc. Since they are not objects, they cannot return as objects, and collection of objects. To support this, java provides wrapper classes to move primitives to objects. Some of the wrapper classes are Integer, Long, Boolean, etc.
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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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