第一天

1. 基本操作题

题目

public class Java_1 {
    public static void main(String[] args) {
        //*********Found********
        int []f=____________[10];
        f[0]=f[1]=1;
        //*********Found********
        for (________________;i<10;i++)
            f[i]=f[i-1]+f[i-2];
        //*********Found********
        for (int i=0;i<f._____________;i++)
        //*********Found********
            System.out.print(_________________+"  ");
    }
    
}

答案

题目

public class Java_2{
   public static void main(String[] args){
      //*********Found**********
      int ____________ aMatrix = new int[4][];
      int i = 0;
      int j = 0;
      int k = 4;

      for(i = 0; i < 4; i++){
         //*********Found**********
         aMatrix[i] = new int[__________];
 
         //*********Found**********
         for (j = 0; j < ___________.length; j++) {
            aMatrix[i][j] = i+1;
            System.out.print(aMatrix[i][j] + " ");
         }
         //*********Found**********
         System.out.______________________;
      }
   }
}

答案

题目

//打印无符号整数位
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Java_3 extends JFrame {
   public Java_3(){
      super( "打印无符号整数位" );
      Container c = getContentPane();
      c.setLayout( new FlowLayout() );
      c.add( new JLabel( "请输入整数: " ) );
      final JTextField output = new JTextField( 33 );
      JTextField input = new JTextField( 10 );
      input.addActionListener(
         new ActionListener() {
            //*********Found********
            public void _________________( ActionEvent e ){
               int val = Integer.parseInt(
                  e.getActionCommand() );
               //*********Found********
               _________________.setText( getBits( val ) );
            }
         }
      );
      c.add( input );
      c.add( new JLabel( "该数的二进制位表示是" ) );      
      output.setEditable( false );
     //*********Found********
      c.add( _________________ );
      setSize( 720, 70 );
      setVisible(true);
   }

   private String getBits( int value ){
      int displayMask = 1 << 31;
      StringBuffer buf = new StringBuffer( 35 );
      for ( int c = 1; c <= 32; c++ ) {
         buf.append(
            ( value & displayMask ) == 0 ? '0' : '1' );
         value <<= 1;
         if ( c % 8 == 0 )
            buf.append( ' ' );
      }
      return buf.toString();
   }

   public static void main( String args[] ){
      Java_3 app = new Java_3();
      app.addWindowListener(
         new WindowAdapter() {
     //*********Found********
            public void windowClosing( ___________ e ){
               System.exit( 0 );
            }
         }
      );
   }
}

答案

为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为了凑字数为