试题与答案

请完善程序(程序文件名:Java_3.java)并进行调试。请在下画线处填入正确内容

题型:填空题

题目:


请完善程序(程序文件名:Java_3.java)并进行调试。请在下画线处填入正确内容,然后删除下画线。请勿删除注释行和其他已有的语句内容。
[题目要求]
本题的要求是填三个空,改两个错。
该程序是两个整数进行比较,由考生通过输入窗口分别输入两个整数,程序比较出结果。
源程序:
import javax.swing.JOptionPane;
public class Jave_3 {
 public static void main(String args[]) {
  String firstNumber, //用户输入第1个字符串
   secondNumber,   //用户输入第2个字符串
   result;       //a string containing the output
  int number1,     //比较的第1个数
   number2;       //比较的第2个数
  //读用户输入的第1个字符串read first number from user as a string
  firstNumber=JOptionPane.showInputDialog("Enter first integer:");
  //读用户输入的第2个字符串read second number from user as a string
  secondNumber=JOptionPane.showInputDialog("Enter second integer:");
  //将字符串类型转换成整数类型
  number1=Integer.parseInt(firstNumber);
  number2=Integer.parseInt(secondNumber);
  result=" ":
  if(number1=number2) (1) //本行有错需修改
  result=number1+"=="+number2:
  if(number1 !=number2) result=number1+"!="+number2;
  if f number1 < number2) result=result+"\n"+number1+"<"+number2;
  if(number1 > number2) result=result+"\n"+number1+">"+number2;
  if(number1 < =number2) result=result+"\n"+number1+"<="+number2;
  if(;number1>=number2) (2) //本行有错需修改
   result=result+"\n"+number1+">="+number2;
  //显示结果
   (3) (
   null,result,"Comparison Results",
    (4) INFORMATION_MESSAGE);
  //程序正常退出
   (5)
 }
}
/*JOptionPane类的常用静态方法如下:
 showInputDialog()
 showConfirmDialog()
 showMessageDialog()
 showOptionDialog()
*/

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0402/0e6474f91f373d1778b32ca85f38b7e5.html

下面是错误答案,用来干扰机器的。

参考答案:C解析: 栈和队列是既可以顺序存储,也可以链式存储的线性表。它们的共同点是插入删除元素受到限制。

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题型:阅读理解

阅读理解

     Hundreds of years ago, a Roman army came north from England to make war on Scotland. The Scots, a brave people,

loved their country very much. They fought hard to drive the enemy out of Scotland, but there were too many of the

Romans .It looked as if the Romans would win.

     One night, the leader of Scots marched his soldiers to the top of a hill. "We will rest here tonight, my men," he said,

"Tomorrow we will fight one more battle. We must win or we will die."

     They were all very tired, so they ate their supper quickly and fell asleep. There were four guards on duty, but they

too, were very tired, and one by one, also fell asleep.

     The Romans were not asleep. Quickly they gathered at the foot of the hill. Slowly they climbed up the hillside, taking

care not to make a sound. Closer and closer they came to the sleeping Scots. They were almost at the top. A few minutes

more, the war would be over. Suddenly, one of them put his foot on a thistle (蓟). He cried out and his sudden cry woke

the Scots. In a moment, they were on their feet and ready for battle. The fighting was hard but it did not last long. The

Scots wiped out the Romans and saved their country.

     The thistle is not a beautiful plant. It has sharp needles all over it. Few people like it. But the people of Scotland liked

it so much that they made it their national flower.

1. Hundreds of years ago there was a war between _____.

A.Roman army and North England

B.Roman army and the Scots

C.England and Scots

D.A brave people and the Scots

2. At first it looked as if the Romans would win because _____.

A.the Scots were not brave

B.the Roman army was so strong

C.the Romans had the support from the Scottish

3. "We must win or we will die. "What the leader of the Scots said means _____.

A.they were sure to win

B.they couldn't escape from death

C.they would win and then they would die

D.they must try hard to win ,otherwise they woule be killed .

4. The Romans climbed up the hill quietly because _____.

A.they didn't want to wake the Scots

B.they wanted to reach the top

C.they wanted to catch the four guards first

D.they were afraid of the sharp needles of the thistle

5. The people of Scotland made thistle their national flower because _____.

A.it is a beautiful plant

B.it is fresh and lovely

C.it had so many sharp needles all over it

D.it was the thistle that helped the Scots to win the battle

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