#34 What is String in Java

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In this lecture we are discussing:
1)What is String?
2)How to create String object?
3)hashcode
4)Concatenation operator
5)Some method of String class

#1
-- If you want to store character sequence e.g "shiva", "navin", "hyder" in
such cases we need character array or String (non-primitive data ) .
-- But Using String object it is easy to store sequence of character.

-- String is non primitive data-type and it is also a class.
String str="shiva";

#2
How to create String object?
-- using new operator String str=new String("shiva");
-- directly assigning String str="shiva"; put sequence of character inside a double quotes.

#3
What is hashcode?
-- hashcode is unique number for each object created in heap.
-- hashcode is used to identify object.

#4
Concatenation operator
-- + operator used to concatenate the String
String firstName="shiva";
String lastName="srivastava";
String fullName=firstName+lastName;

#5
some method used in String
a) int length() --to find the length of String
b) char charAt(int index) --to find character at particular index

Note: In array length is property while in String length() is method.

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[kvelez]

public class Main{
public static void main(String[] args) {

String name = "Murdoc";
System.out.println(name);


System.out.println(name.substring(1, 3));




programs"));

}
}

[darklord]

@Telusko Thanks for remaking videos...

[monirkhan]

hi sir i am your great friend 🙂🙂 But I have been suffering from a problem for some time.I have been learning java programming from watching your videos for almost four years.Should I learn or should I shift to another language? Because i want to be a freelancer🙂

[mrmansir]

so on 7:00, is String name = "navin"; just a simplified way of typing String name = new String("navin"); ? Do they both work the exact way and mean the same thing?

[akshay]

its showing when i click on definition // Failed to get sources. Instead, stub sources have been generated by the disassembler.
// Implementation of methods is unavailable.

[hardwaregeek]

String s = new String ("abc");
String S2 = "abc";

How many objects will be created in the heap memory?

[vishwa]

can anyone tell me, when he clicks on the String keyword he is getting the String.class file how do i get it in my VS code also

[puruagni]

Why are you not updating VS Code? Please update VS Code.

[monirkhan]

hi sir i am your great friend 🙂🙂 But I have been suffering from a problem for some time.I have been learning java programming from watching your videos for almost four years.Should I learn or should I shift to another language? Because i want to be a freelancer🙂

[monirkhan]

hi sir i am your great friend 🙂🙂 But I have been suffering from a problem for some time.I have been learning java programming from watching your videos for almost four years.Should I learn or should I shift to another language? Because i want to be a freelancer🙂

[monirkhan]

hi sir i am your great friend 🙂🙂 But I have been suffering from a problem for some time.I have been learning java programming from watching your videos for almost four years.Should I learn or should I shift to another language? Because i want to be a freelancer🙂

[monirkhan]

hi sir i am your great friend 🙂🙂 But I have been suffering from a problem for some time.I have been learning java programming from watching your videos for almost four years.Should I learn or should I shift to another language? Because i want to be a freelancer🙂