Thread: incompatible types

Calculator.java:26: incompatible types
found   : java.lang.String
required: int
           switch (size) {
                   ^
1 error
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that's my error. i understand it but i don't know what int i should put there.

heres my code

	public static void main(String[] args) {
      System.out.print("Enter your equation size and press Enter: ");
       BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
       String size = null;
       try {
         size = br.readLine();
       } catch (IOException e) {
         System.out.println("Error!");
         System.exit(1);
       }
	   switch (size) {
		   case 1:
			oneStep();
		   break;
 
		   case 2:
			twoStep();
		   break;
	   }
       System.out.println("Your equation size is: "+size);
	}

some 1 will input the size of the equation they want to do. 1 step = 1 two step = 2 ect.

if some 1 inputs one its supposed to preform the function oneStep();