URI getQuery() method in Java with Examples


The getQuery() function is a part of URI class. The function getQuery() returns the Query of a specified URI.

Function Signature

public String getQuery()

Syntax



uri.getQuery()

Parameter This function does not require any parameter

Return Type: The function returns String Type

Below programs illustrates the use of getQuery() function:

Example 1: Given a URI we will get the Query using the getQuery() function.

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// Java program to show the use of the function getQuery()
  
import java.net.*;
  
class Solution {
    public static void main(String args[])
    {
        // uri  object
        URI uri = null;
  
        try {
            // create a URI
  
            // get the  Query
            String _Query = uri.getQuery();
  
            // display the URL
            System.out.println("URI = " + uri);
  
            // display the  Query
            System.out.println(" Query= " + _Query);
        }
        // if any error occurs
        catch (Exception e) {
            // display the error
            System.out.println(e);
        }
    }
}

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Output:

URI = https://www.geeksforgeeks.org/url-getprotocol-method-in-java-with-examples?title=protocol
 Query= title=protocol

Example 2: Now we will not provide any query and use the function to get the query and see the results.

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// Java program to show the use of the function getQuery()
import java.net.*;
class Solution {
    public static void main(String args[])
    {
        // uri  object
        URI uri = null;
  
        try {
            // create a URI
  
            // get the  Query
            String _Query = uri.getQuery();
  
            // display the URL
            System.out.println("URI = " + uri);
  
            // display the  Query
            System.out.println(" Query=" + _Query);
        }
        // if any error occurs
        catch (URISyntaxException e) {
            // display the error
            System.out.println("URI Exception =" + e.getMessage());
        }
    }
}

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Output:

URI = https://www.geeksforgeeks.org/url-getprotocol-method-in-java-with-examples
 Query=null

Example 3: The value returned by getQuery() and getRawQuery() is same except that all sequences of escaped octets are decoded.
The getRawPath() returns the exact value of the string as provided by the user but the getQuery() function decodes the sequence of escaped octets if any.

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// Java program to show the use of the function getQuery()
import java.net.*;
class Solution {
    public static void main(String args[])
    {
        // uri  object
        URI uri = null;
  
        try {
            // create a URI
  
            // get the  Query
            String _Query = uri.getQuery();
  
            // display the URL
            System.out.println("URI = " + uri);
  
            // display the  Query
            System.out.println(" Query=" + _Query);
  
            // get the  Raw Query
            String Raw_Query = uri.getRawQuery();
  
            // display the Raw Query
            System.out.println(" Raw Query=" + Raw_Query);
        }
        // if any error occurs
        catch (URISyntaxException e) {
            // display the error
            System.out.println("URI Exception =" + e.getMessage());
        }
    }
}

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Output:

URI = https://www.geeksforgeeks.org/url-getprotocol-method-in-java-with-examples?title=protocol%E2%82%AC
 Query=title=protocol?
 Raw Query=title=protocol%E2%82%AC


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Second year Department of Information Technology Jadavpur University

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