variablesizearraydeclarationapp.java

还不错的java基本实例

package ch4;
import javax.swing.*;

/**
 * Created by IntelliJ IDEA.
 * User: shaohj
 * Date: 2005-8-15
 * Time: 19:59:29
 * To change this template use File | Settings | File Templates.
 */
public class VariableSizeArrayDeclarationApp {   
    int []   numbers ;
    public VariableSizeArrayDeclarationApp(){
         int   size;
         size= Integer.parseInt(JOptionPane.showInputDialog(
                "请输入要创建的数组的元数的个数"));
          numbers = new int[size];
          for( int i=0;i< numbers.length ;i++) {
             numbers[i] =Integer.parseInt(JOptionPane.showInputDialog(
                "请输入数组的第" +( i + 1 )+"个元素的值"));
            }
        }

    void printArray(){
        String output="";
       // for(int i=0;i< numbers.length;i++){
         // output +="numbers["+i+"]"+"="+numbers[i]+"\n";
      //}
        int i=0;
        for(int anumber: numbers){
            output +="numbers["+i+"]"+"="+anumber+"\n";
            i++;
        }
        
        
        JOptionPane.showMessageDialog( null,output ,
              "结果", JOptionPane.INFORMATION_MESSAGE );
    }

     public static void main( String[] args) {
         VariableSizeArrayDeclarationApp app=new VariableSizeArrayDeclarationApp();
         app.printArray();
     }
}