第七次作业

第一题

public class 练习1 {

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

    }

第二题

import java.util.Scanner;


public class 练习2 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int []a=new int[5];
        Scanner input=new Scanner(System.in);
        for(int i=0;i<a.length;i++){
            a[i]=input.nextInt();
            System.out.println(a[i]);
        }
    }

}

第三题

public class 练习3 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        char []name={'c','h','i','n','a'};
        for(char i=0;i<name.length;i++){
            System.out.println(name[i]);
        }
        

    }

}

第四题

import java.util.Scanner;


public class 练习4 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int []a=new int[5];
        int sum=0;
        Scanner Input=new Scanner(System.in);
        for(int i=0;i<a.length;i++){
            a[i]=Input.nextInt();
            sum+=a[i];
        }
        System.out.println(sum);
        System.out.println(sum/5);
    }

}

第五题

public class 练习5 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int []a={12,53,23,44,53};
        for(int i=0;i<a.length;i++){
            System.out.println(a[i]);
        }
        for(int i=4;i>=0;i--){
            System.out.println(a[i]);
        }

    }

}

第五题foeach

public class 练习5foreach遍历 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int a[]={12,53,23,44,53};
        for (int i : a) {
            System.out.println(i);
            
        }
        
    }

}

作业一

package fyx;
    import java.util.Scanner;
    public class sj6 {
    
        /**
         * @param args
         */
        public static void main(String[] args) {
            // TODO Auto-generated method stub
            Scanner input=new Scanner(System.in);
            int []a={12,53,23,44,53};
            for (int i = 0; i < a.length; i++) {
                System.out.println(a[i]);
            }
            int J=0,O=0;
            for(int i=0;i<=4;i++){
                if(a[i]%2==1)J=J+1;
                if(a[i]%2==0)O=O+1;
            }
            System.out.println(J);
            System.out.println(O);
            }
        }

package fyx;
import java.util.Scanner;
public class sj7{

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
        int []a=new int[100];
        for (int i = 0; i < a.length; i++) {
            a[i]=i+1;
        }
        for (int i = 0; i < a.length; i++) {
            System.out.println(a[i]);
        }
        }
    }

package fyx;
import java.util.Scanner;
public class sj8 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
        double []a=new double[10];
        
        for (int i = 0; i < a.length; i++) {
            a[i]=input.nextInt();
        }
        for (int i = 0; i < a.length; i++) {
            a[i]=a[i]+5;
            if(a[i]>=100)a[i]=100;
        }
        for (int i = 0; i < a.length; i++) {
            System.out.println(a[i]);
        }
        }
    }