shiyan7

package com.cust.wu;

import java.util.Scanner;
public class test1 {
public static void main(String[] args) {

int[] a= new int[101];
for(int i=0;i<101;i++){
a[i]=0;
}//初始化数组为0
while (a[0]!=1){
Scanner scan=new Scanner(System.in);
System.out.println("输入一个一到100的整数，0结束");

int num=scan.nextInt();
if(num>=0&&num<=100){
a[num]=a[num]+1;
}
else{
System.out.println("输入错误请重新输入");
}
}
System.out.println("输入完毕");
for(int i=1;i<=100;i++){
System.out.println("数字"+i+"出现"+a[i]+"次");
}
}
}

 

 

 

 

 

package com.cust.wu;

import java.util.ArrayList;
import java.util.Scanner;

import org.omg.PortableInterceptor.SYSTEM_EXCEPTION;

public class test2 {
public static void main(String [] args){
Scanner scan=new Scanner(System.in);
ArrayList<double[]> list =new ArrayList<double[]>();
double num=0;
double sum=0;
int count=0;
while(true){
num=scan.nextDouble();
if(num<0){
break;
}
else{
double[] a=new double[1];
a[0]=num;
list.add(a);
sum=sum+num;
count=count+1;
}
}
double pingjun=sum/count;
int more=0;
int less=0;
for(int i=0;i<list.size();i++){
double[] a = list.get(i);
double p = a[0];
if(p>pingjun){
more++;
}
else{
less++;
}

}
System.out.println("平均数是"+pingjun+" 高于平均分的个数"+more+" 低于平均分的个数"+less);
}

}