job.setOutputKeyClass(Text.class);
protected Animal(String name) {
public class Person { private String name; private int age; private boolean isStudent; private List<String> hobbies; private Address address; // getters and setters ... // 嵌套类Address public static class Address { private String street; private String city; private String state; // getters and setters ... } }
public static void main(String[] args) {
String inputString = scanner.nextLine();
1. Java程序中的主函数必须具有特定的签名/,这个函数签名是 __________最准一肖一码一一子中特。
num += 10; // 相当于 num = num + 10;