Question

Java编程问题

Java编程问题求大佬解答

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Answer 1

你留个邮箱 回头我发给你源码

Answer 2

//第二题
public class P2
{
public static void main(String[] args)
{
int month=Integer.parseInt(args[0]);

switch(month)
{
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
System.out.println("31 days");
break;
case 2:
System.out.println("28或29 days");
break;
case 4:
case 6:
case 9:
case 11:
System.out.println("30 days");
break;
}
}
}
//求总和、平均值、最大值、最小值
public class P1
{
public static void main(String[] args)
{
int v,min,max,sum;

min=max=sum=Integer.parseInt(args[0]);
for(int i=1;i<args.length;i++)
{
v=Integer.parseInt(args[i]);
sum+=v;
if(v<min)
min=v;
else if(v>max)
max=v;
}
System.out.println("总和是："+sum);
System.out.println("平均值是："+(sum/args.length));
System.out.println("最大值是："+max);
System.out.println("最小值是："+min);
}
}
//输菱形
public class P3
{
public static void main(String[] args)
{
for(int i=1;i<=9;i++)
{
for(int j=1;j<=9-i;j++)
System.out.print(" ");
for(int j=1;j<=2*i-1;j++)
{
System.out.print(i);
}
System.out.println();
}
for(int i=8;i>=1;i--)
{
for(int j=1;j<=9-i;j++)
System.out.print(" ");
for(int j=1;j<=2*i-1;j++)
{
System.out.print((char)('A'+i-1));
}
System.out.println();
}
}
}