022 do while循环

什么是do while循环

int i = 0;
do {
    System.out.println(i);
    i++;
} while (i <= 100);

具体使用场景

int i;
Scanner scanner = new Scanner(System.in);
do {
    System.out.print("请输入一个整数，如果为负数则结束循环：");
    i = scanner.nextInt();
} while (i >= 0);
System.out.println("循环结束");