7

1.

package sr;

public class sj1 {

    /**
     * @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 <5; i++) {
                System.out.println(a[i]);
    }

}
}

 

2.

package sr;

import java.util.Scanner;

public class sj2 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
         Scanner input=new Scanner(System.in);
         int []a=new int[5];
         System.out.println("输入五个");
         for (int i = 0; i < a.length; i++) {
            a[i]=input.nextInt();
        }
         System.out.println("遍历出来");
         for (int i = 0; i < a.length; i++) {
        System.out.println(a[i]);    
        }
    }

}

 

 3.

package sr;

public class sj3 {

    /**
     * @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 sr;

import java.util.Scanner;

public class sj4 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
        int sum=0;
       int t=0;
        int []a=new int[5];
        System.out.println("输入五个成绩");
        for (int i = 0; i < a.length; i++) {
            a[i]=input.nextInt();
        }
        for (int i = 0; i < a.length; i++) {
            sum+=a[i];
            t=sum/5;
        }
        System.out.println("总和是"+sum);
        System.out.println("平均是"+t);
    }

}

 

 5.

package sr;

public class sj5 {

/**
* @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]);
}
System.out.println("--------");
for (int i : a) {
System.out.println(i);
}
System.out.println("--------");
for (int i = 4; i >= 0; i--) {
System.out.println(a[i]);
}
}

}

 

 

 1.

package sr;

import java.util.Scanner;

public class zy1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input=new Scanner(System.in);
        System.out.println("输入10个数");
        int []a=new int[10];
      
        int b=0;
        int c=0;
     for (int i = 0; i <10; i++) {
          a[i]=input.nextInt();
        if (a[i]%2==0) {
            b++;
        } else {
           c++;
        }
        
    }   
     System.out.println("奇数个数是"+c+"，"+"偶数个数是"+b);
    }

}

 

 2.

package sr;

public class zy2 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
       int []a=new int[100];
       for (int i = 1; i < 101; i++) {
           a[i - 1] = i;
       }
       for (int i = 0; i < 100; i++) {
           System.out.println(a[i]);
       }
       
    }

}

 

 

3.

package sr;

import java.util.Scanner;

public class zy3 {

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

}
    }