switch case

[Shiva Mohan]

    
class Doubt {
  public static void main (String args[]) {
    char c =24;
    switch(c) {
        case 24:System.out.print("24");
      case '25': System.out.print("1");//----------error line
      case '1': System.out.print("2");
      case '4': System.out.print("3");
      default:  System.out.print("4");
}}}

Why case �25� is showing error but case �1� and case �4� are not showing error since all are inside the char range? Help please

[Keith Lynn]

A character constant can only contain one character.

[marc weber]

To expand on what Keith said...

Assigned to a char variable, an int literal (without quotes) represents a char value. For example, a decimal value of 51 represents the char '3'.

char three = 51;

But an int inside single quotes is interpreted as a char.

char three = '3';

Similarly, '5' is a char, and '1' is a char. But '51' is not a char.

(And of course, an int inside double quotes is interpreted as a String.)

[kwan Jang]

just one character,such char a = 'b'; char n='2'