检查堆栈是否为算术级数| Java

Stack<Integer> stack = new Stack<>();

stack.push(1);
stack.push(3);
stack.push(5);
stack.push(7);

boolean isArithmeticSeries = true;
int difference = stack.get(1) - stack.get(0); // 计算差值

for (int i = 2; i < stack.size(); i++) {
    if (stack.get(i) - stack.get(i-1) != difference) {
        isArithmeticSeries = false;
        break;
    }
}

if (isArithmeticSeries) {
    System.out.println("堆栈是算术级数。");
} else {
    System.out.println("堆栈不是算术级数。");
}