Java 学生信息管理：定义 Student 类并验证年龄

// Student类 public class Student { private String name; private int age;

public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public int getAge() {
    return age;
}
public void setAge(int age) {
    if(age > 0) {
        this.age = age;
    }
}

}

//主类 import java.util.Scanner;

public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); Student[] students = new Student[5]; for(int i=0; i<5; i++) { Student student = new Student(); student.setName(scanner.nextLine()); student.setAge(scanner.nextInt()); scanner.nextLine(); //读取换行符 students[i] = student; }

    int count = 0;
    for(Student student : students) {
        if(student.getAge() <= 0) {
            count++;
            System.out.println(student.getName());
        }
    }
    if(count == 0) {
        System.out.println('right');
    } else if(count == 5) {
        System.out.println('all wrong');
    } else {
        System.out.println(count);
    }
}

}