java第七次作业

1.

package ass;

public class bs {

    /**
     * @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]);
        }

    }

}

2.

import java.util.Scanner;

public class bs {

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

3.

package ass;

public class bs {

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

    }

}

4.

package ass;

import java.util.Scanner;

public class bs {

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

}

5.

package ass;

public class bs {

    /**
     * @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 : a) {
                System.out.println(i);    
        }
        for (int i = a.length-1; i >= 0; i--) {
            System.out.println(a[i]+"");
        }
        
    }

}

1.

package bbb;

import java.util.Scanner;

public class Test3 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
       int a[]=new int[5];
       int j=0;
       int o=0;
       System.out.println("请输入数");
       Scanner sc=new Scanner(System.in);
       for (int i = 0; i < a.length; i++) {
            a[i]=sc.nextInt();
        }
       for (int i = 0; i< a.length; i++) {
        if(a[i]%2==0){
            o++;
        }
        if(a[i]%2!=0){
            j++;
        }
    }
       System.out.println("奇数是"+j+"个"+"偶数是"+o+"个");
    
    }
}

2.

 

package bbb;

public class Test2 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        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.print(a[i]);
            System.out.print("  ");
            }
    }

3.

package bbb;

import java.util.Scanner;

public class Test3 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
       double a[]=new double[10];
       System.out.println("请输入10个数");
       Scanner sc=new Scanner(System.in);
       for (int i = 0; i < a.length; i++) {
            a[i]=sc.nextDouble();
        }
      for (int i = 0; i < a.length; i++) {
        if(a[i]<=95){
            a[i]+=5;
        }
        if(a[i]==96){
            a[i]+=4;
        }
        if(a[i]==97){
            a[i]+=3;
        }
        if(a[i]==98){
            a[i]+=2;
        }
        if(a[i]<=99){
            a[i]+=1;
        }
        if(a[i]==100){
            a[i]+=0;
        }
        System.out.println("成绩是"+a[i]);
       }
    }
}