Java · Theory

Unicode System in Java

Theory

12/270

Unicode System in Java

Unicode means Java can store Hindi, English, and many other scripts, not only A–Z. That matters for real apps in India.

A char is based on Unicode. You can also write '\u0905' for अ. Everyday text usually sits in a String, not a single char.

One char is not always one visible symbol. Some symbols need more than one code unit. Don’t treat every letter as exactly one char.

Let's take this on the board with one tiny Main class — no extra files. Unicode System in Java — output: अ. \u0905 is Unicode for अ — Java char can store Hindi, not only English. Start from main, go line by line, and stop at each print. That output is the proof for Unicode System.

Exam tip

Say: Java uses Unicode, so Hindi text is normal, not a hack.

Example

public class Main {
  public static void main(String[] args) {
    char hindi = '\u0905'; // अ
    System.out.println(hindi);
  }
}

Unicode System in Java — output: अ. \u0905 is Unicode for अ — Java char can store Hindi, not only English.

Short notes

DefUnicode lets Java store Hindi, English, and many scripts.
Rulechar uses Unicode. '\uXXXX' is a Unicode escape.
RememberEveryday text goes in String, not one char.
TrapOne visible symbol is not always one char.

Java · Theory

Unicode System in Java

← All stacks

Theory

12/270

Unicode System in Java

Unicode means Java can store Hindi, English, and many other scripts, not only A–Z. That matters for real apps in India.

A char is based on Unicode. You can also write '\u0905' for अ. Everyday text usually sits in a String, not a single char.

One char is not always one visible symbol. Some symbols need more than one code unit. Don’t treat every letter as exactly one char.

Exam tip

Say: Java uses Unicode, so Hindi text is normal, not a hack.

Example

public class Main {
  public static void main(String[] args) {
    char hindi = '\u0905'; // अ
    System.out.println(hindi);
  }
}

Unicode System in Java — output: अ. \u0905 is Unicode for अ — Java char can store Hindi, not only English.

Short notes

DefUnicode lets Java store Hindi, English, and many scripts.
Rulechar uses Unicode. '\uXXXX' is a Unicode escape.
RememberEveryday text goes in String, not one char.
TrapOne visible symbol is not always one char.

Unicode System in Java

Example

Short notes

Questions

Unicode System in Java

Example

Short notes

Questions