Learn Java in hindi very easy way via Videos

Basic in java Writing a hello world program in java 

 

Java String in Hindi 

Static variable in java in hindi 

How to prepare Resume for Usa in Computer Science

Facing a coding interview in USA is lot different than compared to other country.It include few skills sets and easy flexible procedure for every individual.

Few key procedures to keep in mind while facing an interview:

• Ask Your interviewer a question regarding problem.
• Find an optimum way to solve the problem and with lesser complexity(time and space).
• Write a pseudo code for your program before writing it.
• Try to fix bugs in your program systematically and correct the bugs.
• it requires coding skills, aptitude and good personality.
• Use Situation action Result module to answer question. 
•  Most of people makes mistake in interview so don’t worry on any of mistake you make 

Types of Question generally asked in freshers interview are as follows:

• Matrix problem, Reverse Linked list, Array manipulation.
• Algorithm like , merge sort, insertion sort, recursion, bit manipulation. 
•  How to find time and space complexity.
• question related to other data structure and other mathematical problem.

If you wish to practice for interview then practice some question from CareerCup.

Some more type of logical Question for interview for experienced individual.

• Product design question need to be handled with more detail as asking of user.
• problem solving skill, how break problem in components.
• How to reduce ambiguity? Sanity check.
• How to solve scalablity issue?
• Everyone makes mistake in interview but they compare with other candidates.

How to make a good resume to get interview call? 

• Make your resume short to just 1 page or maximum 2.
• Put your important projects on your resume, and job role in experience.
• Mention details of your projects, be specific about what was your role in project.
• Mention algorithm you implemented,how you optimize it?
• Certification are attractive if you put on resume.

Resource to get resume demo

If you really have time then please watch this video

String In java

What is String Class in Java ?

• String class represent character string. All string in  java implemented as instance of class.
• String class is an Immutable java class It can not be modified and it uses string table.
• String class in java is one which is used most.

There are various methods in string class which are used to manipulate string. String Class possess eleven constructor which allow you to manipulate string.

Simple way to create string in java.

String s="Welcome to my Blog"; //String s contains Welcome to my Blog 

Few methods of String Class are as follows:-

• Char CharAt(int index) :- Returns a character at specified index.
• int indexOf(char ch):- Returns index of first occurrence of  specified character.
• int compareTo(object o):- compare string with another object.
• int length():- Returns length of string.
• String toLowerCase(): Converts all the character of string to lower case.

String example: Some methods of string class:

If you have More time there is a video  you can look and learn from it 

For  video in Hind  language click here

Program:
package xyz;
public class stringexp {

public static void main(String[] args) {
String s1="Welcome to Java";
  String s2 = s1;
String s3 = new String("Welcome to Java");
String s4 = "Welcome to Java";
System.out.println("this are four strings"+"\n"+s1+"\n"+s2+"\n"+s3+"\n"+s4);
System.out.println("s1==s2:"+s1==s2);
 System.out.println("s2==s3:"+s2==s3);
System.out.println("s1.equals(s2):"+s1.equals(s2));
System.out.println("s2.equals(s3):"+s2.equals(s3));
System.out.println(" s1.compareTo(s2): " +s1.compareTo(s2));
System.out.println("s2.compareTo(s3):" +s2.compareTo(s3));
System.out.println("s1 == s4:"+s1 == s4 );
System.out.println("character at 0:"+s1.charAt(0));
System.out.println("index of string j:"+s1.indexOf('J'));
System.out.println("index of string to:"+s1.indexOf("to"));
System.out.println("last index of a:"+s1.lastIndexOf('a'));
System.out.println("last index of o:"+s1.lastIndexOf("o", 15));
System.out.println("lenth of string:"+s1.length());
System.out.println("from 5th character of string: "+s1.substring(5));
System.out.println("from 5th to 11th character:"+s1.substring(5, 11));
System.out.println("check if it start with wel :"+s1.startsWith("Wel"));
System.out.println("check if it ends with (java):"+s1.endsWith("Java"));
System.out.println("string to lowercase:"+s1.toLowerCase());
System.out.println("string to uppercase:"+s1.toUpperCase());
System.out.println("Welcome "+s1.trim());
System.out.println("replace o with T: "+s1.replace('o', 'T'));
System.out.println("replace all the 'o' by character 'T':"+s1.replaceAll("o", "T"));
System.out.println("replace only 1st 'o' with 'T':"+s1.replaceFirst("o", "T"));
char[] array = s1.toCharArray();
System.out.println(" convert sting to character : ");
for(int i=0;i {
     System.out.print(array[i]+" ");
}
  }

}

Output:

this are four strings

Welcome to Java

Welcome to Java

Welcome to Java

Welcome to Java

false

false

s1.equals(s2):true

s2.equals(s3):true

 s1.compareTo(s2): 0

s2.compareTo(s3):0

false

character at 0:W

index of string j:11

index of string to:8

last index of a:14

last index of o:9

lenth of string:15

from 5th character of string: me to Java

from 5th to 11th character:me to 

check if it start with wel :true

check if it ends with (java):true

string to lowercase:welcome to java

string to uppercase:WELCOME TO JAVA

Welcome Welcome to Java

replace o with T: WelcTme tT Java

replace all the 'o' by character 'T':WelcTme tT Java

replace only 1st 'o' with 'T':WelcTme to Java

 convert sting to character : 

W e l c o m e   t o   J a v a