JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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How to decode URL content in Java?


Description:

URLDecoder is a utility class for HTML form decoding. This class contains static methods for decoding a String from the application/x-www-form-urlencoded MIME format. Below example shows how to decode an encoded string.


Code:
package com.myjava.url;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;

public class MyURLDecode {
    public static void main(String a[]){
        try {
            System.out.println(URLDecoder.decode("special+chars%3A+%26%25*+", "UTF-8"));
        } catch (UnsupportedEncodingException ex) {
            ex.printStackTrace();
        }
    }
}

Example Output

special chars: &%*

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Knowledge Centre
String Vs StringBuffer
We know that String is immutable object. We can not change the value of a String object once it is initiated. If we try to change the value of the existing String object then it creates new object rather than changing the value of the existing object. So incase, we are going to do more modificatios on String, then use StringBuffer. StringBuffer updates the existing objects value, rather creating new object.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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