大家好，我是小典，我来为大家解答以上问题。java程序设计实训心得，java程序设计很多人还不知道，现在让我们一起来看看吧！
/*Test.java*/
public class Test {
public static void main(String[] args)
{
System.out.println("问题1：");
Quest01.func1();
System.out.println("问题2：");
Quest02.func1();
System.out.println("问题3：");
Quest03.func1();
System.out.println("问题4：");
Quest04.func1();
}
}
/*Quest01.java*/
public class Quest01 {
public static void func1()
{
int sum=0;
for(int i=1;i<=100;i++)
{
sum+=i;
}
System.out.println(sum);
}
}
/*Quest02.java*/
public class Quest02 {
static void func1()
{
String str="";
for(int i=1;i<=9;i++)
{
for(int j=1;j<=9;j++)
{
if(j<=i)
{
str+=i+"*"+j+"="+i*j+" ";
}
if(j==i)
{
str+=" ";
break;
}
}
}
System.out.println(str);
}
}
/*Quest03.java*/
import java.util.Scanner;
public class Quest03 {
public static void func1()
{
float[] score=new float[5];
float max=0,min=0,avg=0;
Scanner s=new Scanner(System.in);
for(int i=0;i{ System.out.println("please input score "+i+":"); score[i]=s.nextFloat(); } max=score[0]; min=score[0]; avg=0; for(int i=0;i { if(score[i]>max) max=score[i]; if(score[i] min=score[i]; avg+=score[i]; } avg=avg/score.length; System.out.println("max="+max+" "+"min="+min+" "+"avg="+avg); } } /*Quest04.java*/ public class Quest04 { static void func1() { Person p1=new Person(); Student s1=new Student(); Teacher t1=new Teacher(); p1.eat(); s1.getName(); t1.getAge(); s1.playGame(); } } class Person { String name; int age; void eat() { System.out.println("eat()"); } String getName() { System.out.println("getName():"+name); return name; } int getAge() { System.out.println("getAge():"+age); return age; } } class Student extends Person implements PlayGame { Student() { this.name="学生"; this.age=10; } public void playGame() { // TODO Auto-generated method stub System.out.println("playGame()"); } } class Teacher extends Person { Teacher() { this.name="老师"; this.age=40; } } interface PlayGame { void playGame(); }
本文到此讲解完毕了，希望对大家有帮助。