faizakram

/*
	 * Remove duplicate prime number in a list
	 */
		for (int i = 0; i < list.size(); i++) {
			if (Collections.frequency(list, list.get(i)) > 1) {
				final Integer number = list.get(i);
				if(LongStream.range(2, (long) Math.ceil(Math.sqrt(number + 1))).noneMatch(x -> number % x == 0))
				{
					list.remove(i);
				}

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#======================== Composite Key Group By =================================
Function<UserInfo, List<Object>> compositeKey = userInfo ->
    Arrays.<Object>asList(userInfo.getName(), userInfo.getId());
Map<Object, List<UserInfo>> map = userInfos.stream().collect(Collectors.groupingBy(compositeKey, Collectors.toList()));

#===================================================

Integer arr[] = { 5, 5, 1, 2, 3, 2, 1, 1 };
List<Integer> data = Stream.of(arr).collect(Collectors.toList());
System.out.println("Move Data into List"+data);

faizakram

How to write to raw string with jackson 2?
String result ="";
		try {
			result = objectMapper.writeValueAsString(objectMapper.writeValueAsString(list));
		} catch (JsonProcessingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println(result);
//Output like this "[{\"id\":1,\"name\":\"Dinesh\",\"age\":20},{\"id\":2,\"name\":\"Kamal\",\"age\":15},{\"id\":3,\"name\":\"Vijay\",\"age\":25},{\"id\":4,\"name\":\"Dinesh\",\"age\":30},{\"id\":5,\"name\":\"Dinesh\",\"age\":18}]"

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public static byte[] compress(BufferedImage image, float scale) throws IOException {
	    ByteArrayOutputStream baos = new ByteArrayOutputStream();
	    Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName("jpg");
	    ImageWriter writer = writers.next();
	    ImageWriteParam param = writer.getDefaultWriteParam();
	    param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
	    param.setCompressionQuality(scale);
	    ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
	    writer.setOutput(ios);
	    writer.write(null, new IIOImage(image, null, null), param);

faizakram

To Kill Port On Linux
==========================
kill $(lsof -t -i:8080)

To Move File to Other Location
=============================
mv command main options:

option	description
mv -f	force move by overwriting destination file without prompt

faizakram

/** Add the Given Dependency
  <dependency>
			<groupId>com.amazonaws</groupId>
			<artifactId>aws-java-sdk</artifactId>
			<version>1.11.163</version>
		</dependency>
*/
import java.io.IOException;
import java.io.InputStream;

faizakram

	private Properties hibernateProperties() {
		Properties properties = new Properties();
		properties.put(CommonConstants.HIBERNATE_DIALECT,
				propertyReader.getProperty(CommonConstants.HIBERNATE_DIALECT));
		properties.put(CommonConstants.HIBERNATE_SHOW_SQL,
				propertyReader.getProperty(CommonConstants.HIBERNATE_SHOW_SQL));
		properties.put(CommonConstants.HIBERNATE_FORMAT_SQL,
				propertyReader.getProperty(CommonConstants.HIBERNATE_FORMAT_SQL));

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const mapToAoO = m => {
  return Array.from(m).map( ([k,v]) => {return {[k]:v}} );
};

JSON.stringify(mapToAoO(map));

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import java.io.File;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

faizakram

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.UUID;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.model.CreateBucketRequest;
import com.amazonaws.services.s3.model.GetBucketLocationRequest;