Check out example codes for "switch case java". It will help you in understanding the concepts better.

Code Example 1

int day = 4;
switch (day) {
  case 6:
    System.out.println("Today is Saturday");
    break;
  case 7:
    System.out.println("Today is Sunday");
    break;
  default:
    System.out.println("Looking forward to the Weekend");
}
// Outputs "Looking forward to the Weekend"

Code Example 2

// switch statement 
switch(expression)
{
   // case statements
   // values must be of same type of expression
   case value1 :
      // Statements
      break; // break is optional
   
   case value2 :
      // Statements
      break; // break is optional
   
   // We can have any number of case statements
   // below is default statement, used when none of the cases is true. 
   // No break is needed in the default case.
   default : 
      // Statements
}

Code Example 3

switch(x){
	case(0):		//if x == 0
    	//do some stuff
    	break;
    //add more cases
  default:			//when x does not match any case
    //do some stuff
    break;
}

Code Example 4

switch (/*Variable*/)
{
  case /*Variable*/:
    /*Action*/;
    break;        
  default:
    /*Action*/;             
}

Code Example 5

int i = 63;

switch (i)
{
    case int n when (n >= 100):
        Console.WriteLine($"I am 100 or above: {n}");
        break;

    case int n when (n < 100 && n >= 50 ):
        Console.WriteLine($"I am between 99 and 50: {n}");
        break;

    case int n when (n < 50):
        Console.WriteLine($"I am less than 50: {n}");
        break;
}

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