第六周上机

1

package test;

import java.util.Scanner;

public class hhh {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		int [] a ={10,20,30,40,50};
		int i;
		for(i=0;i<=4;i++){
			System.out.println(a[i]);
		}
	            }
	        
	}

　　

 

 2

package test;

import java.util.Scanner;

public class hhh {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		int a[]=new int[5];
		int i;
		a[0]=10;
		a[1]=20;
		a[2]=30;
		a[3]=40;
		a[4]=50;
		for(i=0;i<=4;i++)
			System.out.println(a[i]);
		
	        
	}
}

　　

 3

package test;

import java.util.Scanner;

public class hhh {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		int a[]={23,45,22,33,56};
		int he,pingjun;
		he=a[0]+a[1]+a[2]+a[3]+a[4];
		pingjun=he/5;
		System.out.println("合为"+he);
		System.out.println("平均值为"+pingjun);
		
	        
	}
}

　　

4

 

package test;

import java.util.Scanner;

public class hhh {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		int a[]={18,25,7,36,13,2,89,63};
		int i,max=a[0],s=0;
		for( i=0;i<a.length;i++){
			if(max<a[i]){
				max=a[i];
				s=i;
			}
			
		}
		
			
		System.out.println("最大为"+max);
		System.out.println("下表为"+s);
	        
	}
}

　　

 

 

5

package test;

import java.util.Scanner;

public class hhh {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		int a[]={18,25,7,36,13};
		int i,j,m;
		for(i=0;i<=2;i++){
		 m = a[i];
	       a[i] = a[5-i-1];
	       a[5-i-1] = m;}
		for(j=0;j<=4;j++){
			System.out.println(a[j]);
		}
			
	        
	}
}