Update README.md (#399)

- Added API Reference Section.
- Added individual links to each API

README.md

@@ -24,31 +24,63 @@ You can download the latest [JAR](http://repo1.maven.org/maven2/io/minio/minio/2
 
 ## Example
 ```java
-
-import io.minio.MinioClient;
-import io.minio.messages.Bucket;
-import io.minio.errors.MinioException;
-import java.util.Iterator;
-import java.util.List;
 import java.io.IOException;
 import java.security.NoSuchAlgorithmException;
 import java.security.InvalidKeyException;
-import org.xmlpull.v1.XmlPullParserException;
 
-public class HelloListBuckets {
-    public static void main(String[] args) throws NoSuchAlgorithmException, IOException, InvalidKeyException,     XmlPullParserException, MinioException {
-        // Create a s3Client.
-        MinioClient s3Client = new MinioClient("s3.amazonaws.com", "YOUR-ACCESSKEYID", "YOUR-SECRETACCESSKEY");
+import org.xmlpull.v1.XmlPullParserException;
 
-        // list buckets
-        List<Bucket> bucketList = s3Client.listBuckets();
+import io.minio.MinioClient;
+import io.minio.errors.MinioException;
 
-        for (Bucket bucket : bucketList) {
-            System.out.println(bucket.name());
-        }
+public class FileUploader {
+  public static void main(String[] args) throws NoSuchAlgorithmException, IOException, InvalidKeyException, XmlPullParserException {
+    try {
+      // Create a minioClient with the Minio Server name, Port, Access key and Secret key.
+      MinioClient minioClient = new MinioClient("https://play.minio.io:9000", "Q3AM3UQ867SPQQA43P2F", "zuf+tfteSlswRu7BJ86wekitnifILbZam1KYY3TG");
+
+      // Check if the bucket already exists.
+      boolean isExist = minioClient.bucketExists("asiatrip");
+      if(isExist) {
+        System.out.println("Bucket already exists.");
+      } else {
+        // Make a new bucket called asiatrip to hold a zip file of photos.
+        minioClient.makeBucket("asiatrip");
+      }
+
+      // Upload the zip file to the bucket with putObject
+      minioClient.putObject("asiatrip","asiaphotos.zip", "/tmp/asiaphotos.zip");
+      System.out.println("/tmp/asiaphotos.zip is successfully uploaded as asiaphotos.zip in asiatrip bucket.");
+    } catch(MinioException e) {
+      System.out.println("Error occured: " + e);
     }
+  }
 }
+
 ```
+### API Reference
+* [Complete API Reference] (https://docs.minio.io/docs/java-client-api-reference)
+
+#### Bucket Operations
+* [`makeBucket`](https://docs.minio.io/docs/java-client-api-reference#makeBucket)
+* [`listBuckets`](https://docs.minio.io/docs/java-client-api-reference#listBuckets)
+* [`bucketExists`](https://docs.minio.io/docs/java-client-api-reference#bucketExists)
+* [`removeBucket`](https://docs.minio.io/docs/java-client-api-reference#removeBucket)
+* [`listObjects`](https://docs.minio.io/docs/java-client-api-reference#listObjects)
+* [`listIncompleteUploads`](https://docs.minio.io/docs/java-client-api-reference#listIncompleteUploads)
+
+#### Object Operations
+* [`getObject`](https://docs.minio.io/docs/java-client-api-reference#getObject)
+* [`putObject`](https://docs.minio.io/docs/java-client-api-reference#putObject)
+* [`statObject`](https://docs.minio.io/docs/java-client-api-reference#statObject)
+* [`removeObject`](https://docs.minio.io/docs/java-client-api-reference#removeObject)
+* [`removeIncompleteUpload`](https://docs.minio.io/docs/java-client-api-reference#removeIncompleteUpload)
+
+#### Presigned Operations
+* [`presignedGetObject`](https://docs.minio.io/docs/java-client-api-reference#presignedGetObject)
+* [`presignedPutObject`](https://docs.minio.io/docs/java-client-api-reference#presignedPutObject)
+* [`presignedPostPolicy`](https://docs.minio.io/docs/java-client-api-reference#presignedPostPolicy)
+
 
 ### Additional Examples