第二次过程性考核
码云地址：https://gitee.com/ddongqi/16012117
7-5 jmu-Java-03面向对象基础-01-构造函数与toString
import java.util.Scanner;
class Person{
private String name;
private int age;
private boolean gender;
private int id;
Person(){
System.out.println("This is constructor"); System.out.printf("%s,%d,%b,%d\n",name,age,gender,id); } public Person(String a,int b,boolean c){ name=a; age=b; gender=c; } public String toString(){ String className=this.getClass().getName(); return (className+" [name="+name+", age="+age+", gender="+gender+", id="+id+"]"); } } public class Main{ public static void main(String[] args){ Scanner read=new Scanner(System.in); int n=read.nextInt(); int i; Person[] personS; personS=new Person[n]; read.nextLine(); for (i=0;i<n;i++){ String readLine=read.nextLine(); String data[]=readLine.split(" "); personS[i]=new Person(data[0],Integer.valueOf(data[1]),Boolean.parseBoolean(data[2])); } for (i=n-1;i>=0;i--){ System.out.println(personS[i].toString()); } Person person1=new Person(); System.out.println(person1.toString()); } }
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7-6 集体评分
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner w = new Scanner(System.in); int a,b,c,d,e; a=w.nextInt(); b=w.nextInt(); c=w.nextInt(); d=w.nextInt(); e=w.nextInt(); RR rr = new RR(); double dd = rr.fun(a,b,c,d,e); System.out.printf("%.2f",dd); w.close(); } } class RR{ double z; public double fun (int a,int b,int c,int d,int e){ z = (a+b+c+d+e) /5; return z; } }
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7-7 程序填空题
public class Main {
public static void main(String[] args) {
Son son = new Son(); son.method();
}
}
class Parent {
Parent() {
System.out.println("Parent's Constructor without parameter");
}
Parent(boolean b) {
System.out.println("Parent's Constructor with a boolean parameter");
}
public void method() {
System.out.println("Parent's method()");
}
}
class Son extends Parent {
Son(){
super(true);
System.out.println("Son's Constructor without parameter");
}
public void method() {
System.out.println("Son's method()");
super.method();
}
}
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7-8求两点之间的距离
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