Swich case without a break

Data collection process 

 

private void operator1(String title, String[] menu, Scanner scanner) {

int[] data = new int[4];

String[] subTitle = { "숫자를 입력해주세요 ", "연산자를 선택해주세요", "숫자를 입력해주세요", "연산결과" };

int subTitleIdx = 0;

String temp = new String(), message = new String();

{

boolean loopcheck = true, isFormula =false;

int step = 12;

while (loopcheck) {

this.display(title);

switch (step) {

case 12:

case 22:

case 32:

case 42:

step++;

case 13:

case 23:

case 33:

case 43:

if (step != 43)

step += 9;

else

loopcheck = false;

this.display(subTitle[(step / 10) - 1]);

if(message != null) { //메시지처리 

this.display(message);

message = null;

}

if(isFormula) { this.display("[수식]"); 

for(int dataIdx=0; dataIdx<data.length; dataIdx++) {

if(data[dataIdx] !=0) {

this.display(" " + (dataIdx == 1? this.convertToOperator(data[dataIdx]):data[dataIdx]));

this.display("\n");

}else {

break;

}

}

}

}

// this.display(message!=null?message:""); //메시지가 출력되면 출력하고, 안되면 지워! (적합하지 않은 식)

//수식이 있을때와 없을 때? 

}

}

}