Python代码到Java代码的转换

x = 5
y = "Hello"

int x = 5;
String y = "Hello";

if x > 0:
    print("Positive")
elif x == 0:
    print("Zero")
else:
    print("Negative")

if (x > 0) {
    System.out.println("Positive");
} else if (x == 0) {
    System.out.println("Zero");
} else {
    System.out.println("Negative");
}

for i in range(5):
    print(i)

while x > 0:
    print(x)
    x -= 1

for (int i = 0; i < 5; i++) {
    System.out.println(i);
}

while (x > 0) {
    System.out.println(x);
    x--;
}

def add(a, b):
    return a + b

public static int add(int a, int b) {
    return a + b;
}

class MyClass:
    def __init__(self, name):
        self.name = name

    def say_hello(self):
        print(f"Hello, {self.name}!")

public class MyClass {
    private String name;

    public MyClass(String name) {
        this.name = name;
    }

    public void sayHello() {
        System.out.println("Hello, " + name + "!");
    }
}

my_list = [1, 2, 3, 4, 5]

int[] myArray = {1, 2, 3, 4, 5};
List<Integer> myList = Arrays.asList(1, 2, 3, 4, 5);

try:
    result = 10 / 0
except ZeroDivisionError:
    print("Cannot divide by zero!")

try {
    int result = 10 / 0;
} catch (ArithmeticException e) {
    System.out.println("Cannot divide by zero!");
}

with open('file.txt', 'r') as file:
    content = file.read()

try (BufferedReader br = new BufferedReader(new FileReader("file.txt"))) {
    String content = br.readLine();
} catch (IOException e) {
    e.printStackTrace();
}