Strings in One Shot | Java Lecture 49 | java srings | strings | stringbuilder |

Strings in One Shot | Java Lecture 49 | java srings | strings | stringbuilder |

00:00 Introduction
01:04 Declaration, Output and Input
09:04 charAt() & length()
14:15 Builtin String functions
32:25 String + int / char / String
40:28 substring(i,j) & substring(i)
47:46 Ques 1 : MCQ
49:43 Ques 2 : Print all substrings
56:56 Interning in Strings
1:00:08 int[ ] brr = arr
1:02:10 “new” keyword
1:07:37 Immutability of Strings
1:16:24 Performance of Strings
1:29:16 StringBuilder
1:34:10 Builtin StringBuilder functions
1:49:04 Ques 3 : Toggle the characters of a given string
2:08:06 Ques 4 : Count the number of palindromic substrings
2:23:56 Ques 5 : Reverse each word in a sentence
2:35:26 Ques 6 : Compress the given String (LeetCode Medium)
2:50:59 Summary
2:53:35 Maza aa gaya?

📌 𝐏𝐇𝐘𝐒𝐈𝐂𝐒 𝐖𝐀𝐋𝐋𝐀𝐇 𝐎𝐓𝐇𝐄𝐑 𝐘𝐎𝐔𝐓𝐔𝐁𝐄 𝐂𝐇𝐀𝐍𝐍𝐄𝐋𝐒 :

📌 𝐏𝐇𝐘𝐒𝐈𝐂𝐒 𝐖𝐀𝐋𝐋𝐀𝐇 𝐒𝐎𝐂𝐈𝐀𝐋 𝐌𝐄𝐃𝐈𝐀 𝐏𝐑𝐎𝐅𝐈𝐋𝐄𝐒 :

[CollegeWallahbyPW]

Decode Batch:- DSA with C++

Binary Batch:- Java-with-DSA-&-System-Design (Java with DSA & System Design)

Sigma Batch:- Full-Stack-Web-Development (MERN Stack)

Impact Batch:- Data-Science-Masters (Full Stack Data Science)

[cricketworld-tq]

00:00 Introduction
01:04 Declaration, Output and Input
09:04 charAt() & length()
14:15 Builtin String functions
32:25 String + int / char / String
40:28 substring(i, j) & substring(i)
47:46 Ques 1 : MCQ
49:43 Ques 2 : Print all substrings
56:56 Interning in Strings
1:00:08 int[ ] brr = arr
1:02:10 “new” keyword
1:07:37 Immutability of Strings
1:16:24 Performance of Strings
1:21:08 str.equals() & ==
1:29:16 StringBuilder
1:34:10 Builtin StringBuilder functions
1:49:04 Ques 3 : Toggle the characters of a given string
2:08:06 Ques 4 : Count the number of palindromic substrings
2:23:56 Ques 5 : Reverse each word in a sentence
2:35:26 Ques 6 : Compress the given String (LeetCode Medium)
2:50:59 Summary
2:53:35 Maza aa gaya?

[khyatichahal]

Raghav garg sir is the best teacher for coding for sure 💯... ❤so much respect from heart sir ..
Your way of teaching is like as alakh sir for physics and chemistry ...
Best teacher 🎉
Guys plz follow his lectures for best knowledge gaining

[ManishBhusal]

easy solution for ` *1:49:04** Ques 3 : Toggle the characters of a given string* ` problem

// Given a string, the task is to toggle all the characters of the string i.e.
// to convert Uppercase to Lowercase and vice-versa.

public class toggleCharacters {

public static void toggle(StringBuilder str) {
for (int i = 0; i < str.length(); i++) {
char ch = str.charAt(i);
if (Character.isUpperCase(ch)) {
str.setCharAt(i, Character.toLowerCase(ch));
} else if (Character.isLowerCase(ch)) {
str.setCharAt(i, Character.toUpperCase(ch));
}

// Second approach
// int ascii = str.charAt(i);
// if (ascii >= 97 && ascii <= 122) {
// ascii -= 32;
// } else if (ascii >= 65 && ascii < 97) {
// ascii += 32;
// }
// char ch = (char) ascii;
// str.setCharAt(i, ch);

}
System.out.println("Toggled String: " + str);
}

public static void main(String[] args) {
StringBuilder str = new StringBuilder("mAniSH BhusaL");
System.out.println("Original String: " + str);
toggle(str);
}
}

[AmitKumaramitlpu]

sir ..i m huge fan of yours...aapki video dekh ke hi mujhe java me intrest devolp hui..Thank you sir, God bless you

[ankitakumari]

Sir your communication skills are so good and teaching skills

[pushpaKumari-jobm]

Thank You Sir You Are My Best Teacher No Body Teach Like You

[johnsonsvaselly]

Manvi maam i addicted to ur lecture plz return back maam. This is humble request maam don't leave ur students in the middle.

[AshutoshKumar-kbjx]

sir kasam se mazaa a gaya aapke dedication ko salaam hai mera thakyou so much sir

[aamishcr]

Raghav sir is the best teacher. Please sir upload full Java course in your own way.

[shhivanshh]

Important points:
29:30 - String concat and string '+' function
1:02:13 and 1:16:30- Memory allocation in heap

[krishpatel_]

great content. covered all the important topics and the questions was like cherry on top.

[ramitroshan]

Maza aa gaya. Thanku for the amazing lecture

[KartikBH-ldkp]

@1:00:08 this is wrong. It works only if we do,
int[ ] arr={1, 2, 3};
int[ ] brr=arr;
now if I change arr[0], brr[0] also changes.

[anshupriya]

You are the best teacher in the world 😊

[gourabrajak]

one of the best lecture on string, thnk u sir

[prashantkohli]

String str = "AYAAZAM";
Stringbuilder sb= new Stringbuilder(str);
sb.reverse();
Sout(sb);

Thank you Raghav Sir❤

[ShubhamSingh-xpvr]

God level explanation raghav bhaiya...aapka explain krne ka tarika bahut hi aacha h...thanku so much bhaiya jee❤

[ChinmoySarma-qpgc]

maza aa gaya. Thank you sir for this meticulus lecture

[ghulamjunudchishti]

At- 2:01:58 Home Work Answer at my pace.
after line 16, you add this code.

if (asci>=48 && asci<=57){
continue;
}