java - 如果条件为真，则停止代码

问题是在while循环中，有一条评论

BufferedReader user = new BufferedReader(new FileReader(
        "C:\\Users\\Ionut\\workspace\\tBot\\persoane.txt"));

String line;
while ((line = user.readLine()) != null) {
    if (line.toLowerCase().contains(nume.toLowerCase())) {
        System.out.println("Ce mai faci " + nume + "?");
        ceva = scanIn.nextLine(); //here i want to stop if the condition is true, but it will show the message and go ahead and execute the rest of the code
    }
}

最佳答案

基本上有两种常见的解决方案：

1-使用break：

while ((line = user.readLine()) != null) {
    if (line.toLowerCase().contains(nume.toLowerCase())) {
        System.out.println("Ce mai faci " + nume + "?");
        ceva = scanIn.nextLine();
        break;  // exists the closest loop
    }
}

2-使用boolean标志：

boolean stop = false;
while (!stop && (line = user.readLine()) != null) {
    if (line.toLowerCase().contains(nume.toLowerCase())) {
        System.out.println("Ce mai faci " + nume + "?");
        ceva = scanIn.nextLine();
        stop = true;
    }
}