2017款宝马x2最新消息:wiie帮帮我做做这几道看程序写答案题吧~~很急！！

不是我不想做，是没有时间了，老师给的急，考试考的急，给本没时间~~~
二、写出下列代码的结果
1. import java.io.*;
public class abc
{public static void main(String[] args)
{int i,s=0;
int a[] = {10,20,30,40,50,60,70,80,90};
for(i=0;i<a.length;i++)
if(a[i]%3 == 0)s+= a[i];
System.out.println("s="+s);}}
Output:
2. public class Test1{
{ public static void main(String[] args)
{for (int i=-2;i<2 ;i++ )
{ if(i==0) continue;System.out.println("i="+i);}}}
Output:
3. public class Test2
{static void exchange(int i,int j){
int t;t=i;i=j;j=t;}
public static void main(String[] args)
{int i=3;int j=4;
exchange(i,j);
System.out.println("i="+i);System.out.println("j="+j);}}
Output:
4. public class Test3
{public Test3(){
System.out.println("Test3_created.");}
public Test3(String s){
System.out.println("Test3_for_"+s+"_created.");}
public static void main(String[] args)
{Test3 t31;Test3 t32 = new Test3();Test3 t33 = new Test3("Sam");}}
Output:
5. public class Test
{void printValue(int m){do
{System.out.println("The_value_is_"+m);}
while (--m > 10)}
public static void main(String[] args)
{int i=10;Test t =new Test();t.printValue(i);}}
Output:
.6. class Vehicle
{public void drive(){System.out.println("Vehicle:drive");}}
class Car extends Vehicle
{public void drive(){System.out.println("Car:drive");}}
public class Test
{public static void main(String[] args)
{ Vehicle v;Car c;v = new Vehicle();c = new Car();
v.drive();c.drive();v=c;v.drive();}}
Output:
7. class nn
{void search(int arr[],int search){int i,j=-1;
for (i=0;i<arr.length ;i++ )
{if(search+=arr[i]) continue;j=1;break;}
if(j==1);System.out.println(" "+i);
else
System.out.println("None");}}
public class Test
{public static void main(String[] args)
{ int a[]=new int[25];int p1=80;
for (int i=0;i<25 ;i++ )
a[i]=i+58;nn pp=new nn();pp.search(a,p1);}}
Output:
8. public class Test
{public static void main(String[] args)
{String s1 = "Henry Lee";String s2 = "Java Applet";String s3 = "Java";
String st;
if (s.compareTo(s2)<0) st=s2; else st=s1;
if(st.compareTo(s3)<0 ) st=s3; System.out.println("Big="+st);}};
Output:
9. public class ABC
{public static void change (int i){i=i+100;}
public static void change (String s){s=s+"changed?;}
public static void change (StringBuffer sb){sb.append("change?");}
public static void main(String[] args)
{int i=10;String s ="test";
StringBuffer sb = new StringBuffer("test");
System.out.println("i-"+i+",s="+s+",sb="+sb);
change(i);change(s);change(sb);
System.out.println("i-"+i+",s="+s+",sb="+sb);}}
Output:
10.public class T1
{public static void main(String[] args)
{T1 a = new T1();a.method(8);a.method(1,2f);}
void method (float i){System.out.println("Float:"+i);}
void method (long i){System.out.println("Long:"+i);} };
Output:
11. import java.util.Arrays;
public class SortArray
{public static void main(String[] args)
{String[] str = {"Size","abs","length","class"):
Arrays.sort(str);for (int i=0;i<str.length ;i++ )System.out.print(str[i]+"_"); }}
定义a,b如下：
class A
{int a=1;double d=2.0;
void show(){System.out.print("Class A:a="+a+"d="+d);}}
class B extends A
{float a=3.0f;String d="Java program.";
void show(){super.show(){super.show();
System.out.println("Class B:a="+a+"d="+d);}}
(1)若在应用程序的main方法中有以下语句：
A a = new A();
a.show();
则输出的结果如何？
(2)若在应用程序的main方法中定义类B的对象b:
A b = new B();
b.show();
则输出的结果如何？