Can I change switch loop into else-if loop?

Answer 1

switch and if-else aren't loops .

Use else if for every case of switch and else for default.

Answer 2

There is nothing called switch loop in Java

Answer 3

private void startpoint(int myX, int myY){
int nx, ny;
var random = new Random();
for(int k = 0; k< 4; k++){

int r = random.nextInt(4); // the random path that this program will take
for(int q = 0; q < 4;q++){ // random between 0 and 4
switch (r) {

case 0: // moving up
nx = myX;
ny = myY - 1; if (between(nx, x) && between(ny, y) && maze[nx][ny] == 0) {
maze[myX][myY] |=1;
maze[nx][ny] |= 2;
//start again
startpoint(nx, ny);
break; }
case 1: //moving right
nx = myX + 1;
ny = myY;
if (between(nx, x) && between(ny, y) && maze[nx][ny] == 0) {
maze[myX][myY] |= 4;
maze [nx][ny] |= 8; startpoint(nx, ny);
break; }
case 2: //moving down
nx = myX;
ny = myY + 1;
if (between(nx, x) && between(ny, y) && maze[nx][ny] == 0) { maze[myX][myY] |= 2;
maze[nx][ny] |= 1;
startpoint(nx, ny);
break; }

Answer 4

case 3: //moving left
nx = myX - 1;
ny = myY;
if (between(nx, x) && between(ny, y) && maze[nx][ny] == 0) { maze[myX][myY] |= 8;
maze[nx][ny] |= 4; startpoint(nx, ny);
break; }
default:

}
}

Answer 5

Can i change the cases into else-if statements ?

Answer 6

Decoder 👩‍💻

better indent/format your code: it will be more readable/understandable ^^

next times use code playground to share your code, even if that's only a sample of it, when it is long...

anyway, despite your code lacks of closing curly braces, I don't think ypu need to wrap your switch..case inside a loop (hard to say, without your full code): if one case occur, it will be executed without needing to loop over possible values ^^ In fact, actually your code will run 4 times the same case... wich I guess is not expected (and could at worst make your code wrong, at better loose time) ;P

(to be continued in next post)

Answer 7

if..else statements can almost ever replace switch conditional statement (not loop)...

switch (value) {
case value1:
/* code to do if value==value1 */
break; // exit switch, else next case code will be executed
case value2:
/* code to do if value==value2 */
if (condition) {
/* code executed if condition is true */
break; // exit switch
}
// next case will be executed if condition is false
case value3:
/* code executed if value==value3 OR (value==value2 and condition is false) */
// last case doesn't require to explicitly break, since you doesn't have a 'default' statement, else 'default' doesn't require break
}

you can do it as:

if (value==value1) {
/* 1st case */
}
else if (value==value2) {
/* 2nd case */
}
else if (value==value3) {
/* 3rd case */
}
else {
/* default case: both else and default are optional and run for all other cases */
}

... since you doesn't chain cases ^^