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double geteuro();{
int euro = (coins * .25);
return euro;
}

double euro = (coins * .25);

It should be.

also, it appears you may be missing an ending bracket after this...

int slot1 = slotNumber.nextInt(3) + 1;
int slot2 = slotNumber.nextInt(3) + 1;
int slot3 = slotNumber.nextInt(3) + 1;

Oh....you do, but why not have that in the get methods? ...

public int getSlot1(){
return slot1;
}

public int getSlot2(){
return slot2;
}

public int getSlot3(){
return slot3;