Go to else from if block

I have multiple case statements, simplified below. I am in the if block but I need to go to the else block.

if (case) {
  if (case2) {
    return true;
  } else {
      //go to the main else block
  }
} else {
  //if case fails OR case2 fails
}

How can this be accomplished? Is there any way other than using else-if?