以下是一些展示如何使用 Java 语言的代码示例。这些示例涵n 5"); } else if (num < 5) {System.out.println("num is less than 5"); } else {System.out.println("num is equal to 5"); }
for (int i = 0; i < 10; i++) {System.out.println(i); }
public class Person {private String name;private int age;// Constructorpublic Person(String name, int age) {this.name = name;this.age = age;}// Getters and setterspublic String getName() {return name;}public void setName(String name) {this.name = name;}public int getAge() {return age;}public void setAge(int age) {this.age = age;} }
Listnames = new ArrayList<>(); names.add("John"); names.add("Mary"); names.add("Bob");for (String name : names) {System.out.println(name); }
try {// Code that may throw an exception } catch (Exception e) {// Code to handle the exception }
public class MyThread implements Runnable {private String name;public MyThread(String name) {this.name = name;}@Overridepublic void run() {System.out.println("Thread " + name + " is running");} }public class Main {public static void main(String[] args) {MyThread thread1 = new MyThread("Thread 1");MyThread thread2 = new MyThread("Thread 2");thread1.start();thread2.start();} }
Scanner scanner = new Scanner(System.in); System.out.println("Enter your name:"); String name = scanner.nextLine();
以下是一些可以让你在线运行 Java 代码的网站:
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