9.5 homework

1.public class H

{
public static void main(String[] args)

{

System.out.println(" J A V V A ");
System.out.println(" J A A V V A A ");
System.out.println(" J J A A A V V A A A ");
System.out.println(" J J A A V A A ");

}
}

2.public class test
{
public void main(string[] args)
{
double Z = 2*5.5*π;
double M = 5.5*5.5*π;
system.out.println("周长是" + Z);
system.out.println("面积是" + M);
}

}

3.public class test
{
public void main(string[] args)
{
double L = 24*1.6;
double T = 45/60+35/3600;
double S = L/T
system.out.println("速度是：" + S);
}

}