Java Recursion in an If/Else statement -

i'm trying figure out why top block of code executes bottom block of code not. did other execute switch conditions position in if/else statement

public static void onthewall(int bottles){     if (bottles == 0){         system.out.println("no bottles of beer on wall,"                            + " no bottles of beer, ya’ can’t take 1 down, ya’ can’t pass around,"                             + "cause there no more bottles of beer on wall!");     } else if (bottles <= 99){         system.out.println(bottles + " bottles of beer on wall, "                             + bottles + " bottles of beer, ya’ take one"                            + " down, ya’ pass around, "                             + (bottles - 1) + " bottles of beer on wall");         onthewall(bottles-1);     } }  public static void onthewall(int bottles){     if (bottles <= 99){         system.out.println(bottles + " bottles of beer on wall, "                             + bottles + " bottles of beer, ya’ take one"                            + " down, ya’ pass around, " + (bottles - 1)                             + " bottles of beer on wall");         onthewall(bottles-1);     } else if (bottles == 0){         system.out.println("no bottles of beer on wall,"                             + " no bottles of beer, ya’ can’t take 1 down, ya’ can’t pass around,"                             + "cause there no more bottles of beer on wall!");     } } 

your switching conditions if (bottles <= 99) , else if (bottles == 0) causes first block execute because first condition (bottles <= 99) true bottles=0.

if expecting else if execute before if statement, never going happen.

maybe condition should if (bottles > 0 && bottles <= 99) in case second block execute if bottles=0 expect to.