REST API Testing by using Rest assured

 import io.restassured.RestAssured;  
 import io.restassured.http.Method;  
 import io.restassured.response.Response;  
 import io.restassured.specification.RequestSpecification;  
 public class Test {  
  public static void main(String[] args) {  
  // Specify the base URL to the RESTful web service  
  // RestAssured.baseURI =  
  // "http://restapi.demoqa.com/utilities/weather/city";  
  RestAssured.baseURI = "http://restapi.demoqa.com/utilities/weather/city/Mangalore";  
  // Get the RequestSpecification of the request that you want to sent  
  // to the server. The server is specified by the BaseURI that we have  
  // specified in the above step.  
  RequestSpecification httpRequest = RestAssured.given();  
  // Make a request to the server by specifying the method Type and the  
  // method URL.  
  // This will return the Response from the server. Store the response in  
  // a variable.  
  Response response = httpRequest.request(Method.GET);  
  // Now let us print the body of the message to see what response  
  // we have recieved from the server  
  String statusLine = response.statusLine();  
  int statusCode = response.getStatusCode();  
  String responseBody = response.getBody().asString();  
  System.out.println("Status Code :" + statusCode);  
  System.out.println("Status Line is :" + statusLine + "\t");  
  System.out.println("Body:" + responseBody);  
  }  
 }  

Parsing JSON by json simple -Java

package mine;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;

import org.json.simple.JSONObject;
import org.json.simple.JSONValue;

public class Js {

public void getWeather(String cityname) {

URL url;

try {
// Connect to URL
url = new URL("http://restapi.demoqa.com/utilities/weather/city/" + cityname);

URLConnection uc = url.openConnection();

BufferedReader br = new BufferedReader(new InputStreamReader(uc.getInputStream()));

// Create Json Object to parse
JSONObject obj = (JSONObject) JSONValue.parseWithException(br);

// Get data by Key
cityname = (String) obj.get("City");
String temp = (String) obj.get("Temperature");
String humid = (String) obj.get("Humidity");
String windspeed = (String) obj.get("WindSpeed");
String winddirect = (String) obj.get("WindDirectionDegree");

System.out.println("City: " + cityname);
System.out.println("Tempreture: " + temp);
System.out.println("Humidity: " + humid);
System.out.println("WindSpeed: " + windspeed);
System.out.println("WindDirectionDegree: " + winddirect);

br.close();

} catch (Exception e) {

e.printStackTrace();
}

}

public static void main(String[] args) {
Js j = new Js();
j.getWeather("Vasco");

}
}

Show watch in Console Java

package mine;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

class MyWatch implements Runnable {
DateFormat formate;
Calendar cal;
String time;

public void show() {

System.out.print("\r" + time);
}

@Override
public void run() {
try {
while (true) {

new GregorianCalendar();
cal = Calendar.getInstance();

formate = new SimpleDateFormat("hh:mm:ss");
Date date = cal.getTime();
time = formate.format(date);
show();
Thread.sleep(1000);
}
} catch (Exception e) {
e.getMessage();
}

}

}

public class ShowWatch {

public static void main(String[] args) {
Thread t1 = new Thread(new MyWatch());

t1.start();

}
}

Get Random numbers/value from the array in Java

package MyPackage;

import java.util.Random;

public class GenerateRandom {

public static void main(String[] args) {

// Create an aarray
final int numbers[] = { 11, 22, 33, 44, 55, 66 };

// Random Class
Random rand = new Random();

int number = rand.nextInt(6);

System.out.println(number);

System.out.println(numbers[number]);

}

}


-----------------------------------------------------------------------------------


package MyPackage;

import java.util.Random;

public class GenerateRandom {

public static void main(String[] args) {

// Create an aarray
final String name[] = { "Jack", "Stefen", "Alex", "Jeo", "Bill", "Jay" };

// Random Class
Random rand = new Random();

int number = rand.nextInt(6);

System.out.println("Index of the Array: " + number);

System.out.println("Random name form the Array: " + name[number]);

}

}

Deleting all the files from folder in Java

package MyPackage;

import java.io.File;
import org.apache.commons.io.FileUtils;

public class DeleteAllFiles {

public static void main(String[] args) throws Exception {
// Delete all the files in the folder
File filepath = new File("C:\\Users\\Mutturaj.h\\Desktop\\TimeStamp");
FileUtils.cleanDirectory(filepath);

}

}

Time-stamp in Java

public class CalendarClass {

 public static String timeStamp() throws Exception{

  DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH-mm-ss");
  Calendar cal = Calendar.getInstance();
  String date = dateFormat.format(cal.getTime());
  return date;
}
}


Output: 2017-11-09 16-26-35

String class in Java

package MyPackage;

import java.util.ArrayList;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

import org.apache.commons.exec.util.StringUtils;



public class StringOperations
{

public static void main(String[] args) {
String mystring="Muttturaj Hulagabal";

char text=mystring.charAt(1);

System.out.println(text);

int count=mystring.length();

System.out.println(count);

String afterTrim=mystring.trim();
System.out.println("Lenght after Trim"+afterTrim.length());

String anotherString="Muttturaj Hulagabal";
System.out.println("0 means true here"+mystring.compareTo(anotherString));

System.out.println("In Bytes here: "+mystring.getBytes());


String suffix="bal";
System.out.println(mystring.endsWith(suffix));

//Substring is important here, it gets Sub string starting from 10th Index
System.out.println("Substring of my string: "+mystring.substring(10));

//Substring is importent here, it gets Sub string starting from 10th Index and ending from 19th Index
System.out.println(mystring.substring(10, 19));


System.out.println(mystring.subSequence(0, 18));

//Add other string to your string
String duplic=mystring.concat(anotherString);
System.out.println(duplic);

//And here we can use campare string with string variable by using == by using intern() Method
if(mystring==new String("Muttturaj Hulagabal").intern())
{
System.out.println("Yes");
}
else
{
System.out.println("NO");
}

//Converting number to string is importent here

int i = 10;
double d=10.00;


//toString() Method is used to convert to String
String s1=Integer.toString(i);
String s2=Double.toString(d);

System.out.println(s1);
System.out.println(s2);

System.out.println(mystring.toLowerCase());

System.out.println(mystring.toUpperCase());

//valueOf() Method is here which will convert defferent types value into String.
int value=10;

String s10=String.valueOf(value);

System.out.println(s10);

//split() is an importent method here in the String class

String string="12345-67890";
String[] parts=string.split("-");
String part1=parts[0];
String part2=parts[1];

System.out.println(part1);
System.out.println(part2);

//org.apache.commons.lang.StringUtils' split method which can split strings based on the character or string you want to split.
String split[]=StringUtils.split(string, "-");

String split1=split[0];
System.out.println(split1);

String split2=split[1];
System.out.println(split2);

//Lets split by "-"

String stringtopart="12-123-1234-12345-123456";

String[] parttomany=stringtopart.split("-");
System.out.println(parttomany.length);

for(int k=0;k {
System.out.println(parttomany[k]);
}


//Lets split by using Array list Java 8

ArrayList stringlist = (ArrayList) Pattern.compile("-").splitAsStream("12-123-1234-12345").collect(Collectors.toList());
System.out.println(stringlist);
for(int l=0;l System.out.println(stringlist.get(l));


}

}

Writing to PDf file by using PDFBox Java

package MyPackage;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDDocumentInformation;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.font.PDType1Font;

public class PDFWrite
{

public static void main(String[] args) throws Exception
       {

PDDocument doc=new PDDocument();

PDPage page=new PDPage();
doc.addPage(page);

int numberOfPages=doc.getNumberOfPages();
System.out.println(numberOfPages);

float version=doc.getVersion();

System.out.println(version);

PDDocumentInformation info=new PDDocumentInformation();

String title="Mutturaj Hulagabal";

info.setTitle(title);

System.out.println(info.getTitle());

String author = "Mutturaj Hulagabal";

info.setAuthor(author);

System.out.println(info.getAuthor());

PDPageContentStream stream=new PDPageContentStream(doc, page);

stream.beginText();

stream.setFont(PDType1Font.TIMES_BOLD, 20);

stream.newLineAtOffset(25,750);

stream.showText("Mutturaj Hulagabal");

stream.endText();

stream.close();

doc.save(filepath);

doc.close();

}

}

Get excel data into data provider by using Apache POI java

Download Apache POI from here: https://www.apache.org/dyn/closer.lua/poi/release/bin/poi-bin-3.17-20170915.zip

package Learn;

import java.io.FileInputStream;

import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

public class ReadX
{
@DataProvider(name="data")
public Object[][] data() throws Exception
{
String filepath="C:/Users/Mutturaj.h/Desktop/Me.xlsx";

FileInputStream fis=new FileInputStream(filepath);

XSSFWorkbook wb=new XSSFWorkbook(fis);

XSSFSheet sheet=wb.getSheetAt(0);

Object[][] excelData;

int rows=sheet.getPhysicalNumberOfRows();

int cols=sheet.getRow(0).getLastCellNum();

String data=sheet.getRow(0).getCell(1).getStringCellValue();

System.out.println("Number of rows are: "+rows);

System.out.println("Number of columns are: "+cols);

System.out.println(data);

excelData=new Object[rows][cols];

for(int i=0;i {
for(int j=0;j {
excelData[i][j]=sheet.getRow(i).getCell(j).getStringCellValue();
}
}
return excelData;

}

@Test(dataProvider="data")
public void show(String name,String number){
System.out.println(name);
System.out.println(number);
}


}

Read PDF file by using PDFBOX Java

Download PFD Box from here:  https://pdfbox.apache.org/download





package MyPackage;

import java.io.File;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.text.PDFTextStripper;

public class ReadPDF
       {

public void readP() throws Exception
{
File filepath=new File("PDF file path");
PDDocument document = PDDocument.load(filepath);

int pages=document.getNumberOfPages();

System.out.println("Total Number of Pages in Document :"+pages);
     
//Instantiate PDFTextStripper class
      PDFTextStripper pdfStripper = new PDFTextStripper();

      //Retrieving text from PDF document
      String text = pdfStripper.getText(document);
      System.out.println(text);      
     
      //Closing the document
      document.close();

}
public static void main(String[] args) throws Exception {

ReadPDF p=new ReadPDF();
p.readP();

}

}

Write to Excel(.XLSX) using Java Apachi POI

package MyPackage;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class WriteX {

public void writeX() throws Exception
{

File f=new File("C:/Users/Mutturaj.h/Desktop/Me.xlsx");

FileInputStream fis=new FileInputStream(f);

XSSFWorkbook wb=new XSSFWorkbook(fis);

XSSFSheet sheet=wb.getSheet("Muttu2");

XSSFRow row=sheet.createRow(6);

XSSFCell cell=row.createCell(6);

cell.setCellValue("Muttu");

FileOutputStream fos=new FileOutputStream(f);

wb.write(fos);

public static void main(String[] args) throws Exception
{

WriteX x=new WriteX();
x.writeX();

}

}