keyboardreadtest.java

《A first book of java》by Gary J.Bronson 北大出版社

public class KeyBoardReadTest
{
  public static void main (String[] args) 
  throws java.io.IOException
  {
     char key;
     int num1;
     long num2;
     float num3;
     double num4;
     System.out.print("Enter a character: ");     
     key = KBR.readChar();
     System.out.println("The character entered is " + key); 
     System.out.print("Enter an integer value: ");     
     num1 = KBR.readInt();
     System.out.println("The integer entered is " + num1); 
    
     System.out.print("Enter a long integer value: ");     
     num2 = KBR.readLong();
     System.out.println("The long integer entered is " + num2);  
 
     System.out.print("Enter a float value: ");     
     num3 = KBR.readFloat();
     System.out.println("The floating point value entered is " + num3);  
  
     System.out.print("Enter a double value: ");     
     num4 = KBR.readDouble();
     System.out.println("The double value entered is " + num4);  
  }
}