Can someone explain me why my loop is going from 0 to 7? I need to get only in the first 3 cases, but the program is going through all.. The code is in the show() method.
That's how Java's switch statements work.
They "fall through" the cases once one of them matches. You need to add break; after all your cases.
for(brojac=0; brojac<3; brojac++){
switch(brojac){
case 1:
figura1.setPosition(pomx[random], pomy[random]);
stage.addActor(figura1);
System.out.println("1");
break;
case 2:
figura2.setPosition(pomx[random], pomy[random]);
stage.addActor(figura2);
System.out.println("2");
break;
case 3:
figura3.setPosition(pomx[random], pomy[random]);
stage.addActor(figura3);
System.out.println("3");
break;
case 4:
figura4.setPosition(pomx[random], pomy[random]);
stage.addActor(figura4);
System.out.println("4");
break;
case 5:
figura5.setPosition(pomx[random], pomy[random]);
stage.addActor(figura5);
System.out.println("5");
break;
case 6:
figura6.setPosition(pomx[random], pomy[random]);
stage.addActor(figura6);
System.out.println("6");
break;
case 7:
figura7.setPosition(pomx[random], pomy[random]);
stage.addActor(figura7);
System.out.println("7");
break;
}
}