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题目内容 (请给出正确答案)

阅读下面程序

import javax.swing.JOptionPane;

public class Comparison {

public static void main(String args[]) {

String firstNumber, //用户输入第1个数据变量

secondNumber, //用户输入第2个数据变量

result; //输出结果变量

int number1, //用于比较的第1个数

number2; //用于比较的第2个数

//用户输入第1个数据的字符串

firstNuinber=JOptionPane.showInputDialog("输入第1个整数:");

//用户输入第2个数据的字符串

secondNumber=JOptionPane.showInputDialog("输入第2个整数:");

//将字符串转换为整数类型

number1=Integer.parseInt(firstNumber);

number2=Integer.parseInt(secondNumber);

//初始化结果变量

______

//比较两个数据

if(number1==number2)result+=number1+"=="+number2;

if(number1! =number2) result+=number1+"!="+number2;

if(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) result=result+"\n"+number1+">="+number2:

//显示结果

JOptionPane.showMessageDialog(null,result."比较结果",

JOptionPane.INFORMATION_MESSAGE);

System.exit(0);

}

}

为使程序能正确运行并得到合理的输出结果,初始化结果变量语句(下画线处)应是

A.result=" ";

B.result=null

C.result=number1

D.result=number2


参考答案

更多 “ 阅读下面程序import javax.swing.JOptionPane;public class Comparison {public static void main(String args[]) {String firstNumber, //用户输入第1个数据变量secondNumber, //用户输入第2个数据变量result; //输出结果变量int number1, //用于比较的第1个数number2; //用于比较的第2个数//用户输入第1个数据的字符串firstNuinber=JOptionPane.showInputDialog("输入第1个整数:");//用户输入第2个数据的字符串secondNumber=JOptionPane.showInputDialog("输入第2个整数:");//将字符串转换为整数类型number1=Integer.parseInt(firstNumber);number2=Integer.parseInt(secondNumber);//初始化结果变量______//比较两个数据if(number1==number2)result+=number1+"=="+number2;if(number1! =number2) result+=number1+"!="+number2;if(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) result=result+"\n"+number1+">="+number2://显示结果JOptionPane.showMessageDialog(null,result."比较结果",JOptionPane.INFORMATION_MESSAGE);System.exit(0);}}为使程序能正确运行并得到合理的输出结果,初始化结果变量语句(下画线处)应是A.result=" ";B.result=nullC.result=number1D.result=number2 ” 相关考题
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