package com.java.programs;

import java.util.ArrayList;

public class FirstProgram {

public static void main(String args[]) {

//String, int,float and double, boolean, char, arrays, arraylist, maps, set

String name = "chandan";

String name1 = "mishra123";

String num = "123";

double salary = 289496.584;

int rollNo = 1;

String xpath = "//a[contains(text(),'%s']";

////a[contains(text(),'Home')],//a[contains(text(),'Contact')].//a[contains(text(),'Blog')]

//writing name conventions

// variables-start with small cap and then capital cap after each work

// method-start with small cap and then capital cap after each work

// class-start with small cap and then capital cap after each work

// packages-always remains in small case

// [a-z] [^0-9]

System.out.println(name);

System.out.println(name.charAt(1));

System.out.println(name.concat(name1));

System.out.println(name.contains("chan"));

System.out.println(name.endsWith(".pdf"));

System.out.println(name.equals(name1));

System.out.println(name.length());

System.out.println(name1.replaceAll("[0-9]", ""));

System.out.println(name.substring(1, 5));

System.out.println(String.valueOf(rollNo));

System.out.println(Integer.parseInt(num));

System.out.println(String.format(xpath, "home"));

System.out.println(String.format(xpath, "blog"));

System.out.println(salary);

String chars[] = name.split("");

for (int i = 0; i < chars.length; i++) {

System.out.println(chars[i]);

}

String names[] = { "chandan", "adi", "marcos" };

for (int i = 0; i < names.length; i++) {

System.out.println(names[i]);

}

ArrayList<String> namelist = new ArrayList<>();

namelist.add("chandan");

namelist.add("marcos");

System.out.println(namelist.size());

for (String item : namelist) {

System.out.println(item);

}

namelist.remove(1);

for (String item : namelist) {

System.out.println(item);

}

if (name1.contains(name)) {

System.out.println("test passed");

} else {

System.out.println("test failed");

}

int counter = 20;

while (counter > 0) {

System.out.println(counter);

counter--;

}

}

}