Break and Continue

List<Integer> orderIds = new List<Integer>{101, 102, 103, 104, 105};

for (Integer orderId : orderIds) {
    if (orderId == 103) {
        System.debug('Found order 103, stopping search.');
        break;
    }
    System.debug('Checked order ' + orderId);
}

Once orderId == 103, break exits the loop immediately — 104 and 105 are never even checked. This is useful once you've found what you were looking for and don't need to keep going.

List<Integer> quantities = new List<Integer>{5, 0, 8, 0, 3};

for (Integer quantity : quantities) {
    if (quantity == 0) {
        continue;
    }
    System.debug('Processing quantity: ' + quantity);
}

continue skips only the rest of the current pass — the loop moves straight on to the next item instead of stopping altogether. Here, every 0 is skipped, but 5, 8, and 3 are still all processed.

List<Integer> candidateScores = new List<Integer>{45, 62, 88, 30, 91};

for (Integer score : candidateScores) {
    if (score < 50) {
        continue; // doesn't meet the minimum bar, skip to the next candidate
    }
    if (score >= 90) {
        System.debug('Score ' + score + ' — fast-track to final round.');
        break; // found a top candidate, no need to keep screening
    }
    System.debug('Score ' + score + ' — standard review.');
}

continue filters out candidates who don't clear a minimum bar; break stops screening entirely once a standout is found — both express "change the loop\'s normal path" but in different ways.