(Java)尝试创建基本的基于文本的进度条，但输出不一致

public class TextProgressBar {
    public static void main(String[] args) {
        int total = 100; // 总进度
        int current = 0; // 当前进度

        // 更新进度条
        while (current <= total) {
            String progressBar = createProgressBar(current, total);
            System.out.print("\r" + progressBar); // 使用\r回车符实现进度条的动态更新
            current++;
            try {
                Thread.sleep(100); // 模拟耗时操作
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    // 创建进度条字符串
    private static String createProgressBar(int current, int total) {
        int percentage = current * 100 / total; // 计算当前进度百分比
        int completedBlocks = percentage / 2; // 计算已完成的块数
        int remainingBlocks = 50 - completedBlocks; // 计算剩余的块数

        StringBuilder progressBar = new StringBuilder();
        progressBar.append("[");
        for (int i = 0; i < completedBlocks; i++) {
            progressBar.append("=");
        }
        progressBar.append(">");
        for (int i = 0; i < remainingBlocks; i++) {
            progressBar.append(" ");
        }
        progressBar.append("] ");
        progressBar.append(percentage).append("%");

        return progressBar.toString();
    }
}