Proxy constants in Java

Some of the Proxy constants.

1. Proxy.NO_PROXY 

Proxy java.net.Proxy.NO_PROXY

A proxy setting that represents a DIRECT connection, basically telling the protocol handler not to use any proxying.Used, for instance, to create sockets bypassing any other global proxy settings (like SOCKS):

Socket s = new Socket(Proxy.NO_PROXY);

2. Type.DIRECT

java.net.Proxy.Type.DIRECT

Represents a direct connection, or the absence of a proxy.

3. Type.HTTP

java.net.Proxy.Type.HTTP

Represents proxy for high-level protocols such as HTTP or FTP.

4. Type.SOCKS

java.net.Proxy.Type.SOCKS

Represents a SOCKS (V4 or V5) proxy.

5. Type.valueOf(String name)

Type java.net.Proxy.Type.valueOf(String name)

Represents proxy with the given name.

Parameters: One parameter is required for this method.

name: name of the proxy.

Approach

Java

package com.Proxy;

import java.net.Proxy;

public class ProxyConstants {
    public static void main(String[] args) {

        System.out.println(Proxy.NO_PROXY);
        System.out.println(Proxy.Type.DIRECT);
        System.out.println(Proxy.Type.HTTP);
        System.out.println(Proxy.Type.SOCKS);
        String name = "DIRECT";
        System.out.println(Proxy.Type.valueOf(name));

    }
}

Output:

DIRECT
DIRECT
HTTP
SOCKS
DIRECT

Some other methods of Proxy class

Proxy(Type, SocketAddress): This method creates an entry representing a PROXY connection. 

address(): This method returns the socket address of the proxy, or null if it's a direct connection.

Proxy Constants: Some of the Proxy constants like Proxy.NO_PROXY, Type.DIRECT, etc.

equals(Object): This method compares this object against the specified object.

hashCode(): This method returns a hashcode for this Proxy.

toString(): This method constructs a string representation of this Proxy. This String is constructed by calling toString() on its type and concatenating " @ " and the toString() results from its address if its type is not DIRECT.

type(): This method returns the proxy type.