tryarray.java

来自「Java 入门书的源码」· Java 代码 · 共 33 行

//Copyright (c) 1998, Arthur Gittleman
//This example is provided WITHOUT ANY WARRANTY either expressed or implied.

/* Searches an array for the first occurrence of a value 
 * input by the user.  Uses a break statement to exit the 
 * loop if the value is found. Uses a flag to indicate that 
 * the value has been found.
 */

import iopack.Io;
public class TryArray {
  public static void main(String [] args)  {
    int [] score = {56, 91, 22, 87, 49, 89, 65};
    int testValue;                  // the value to search for
    boolean found;                   // flag indicated value found
    char repeat;                    // 'Y' to repeat 'N' to quit

    do {
      found = false;
      testValue = Io.readInt("Enter a score");
      for (int i=0; i < score.length; i++)  
      if (testValue == score[i]) {
        System.out.println("Found score "+ testValue +" at index "+i);
        found = true;
        break;
      }
      if (!found) System.out.println("Score "+testValue+" not found");
      repeat = Io.readChar("Enter 'Y' to repeat, 'N' to quit");
    } while (repeat == 'Y' || repeat == 'y');
    Io.readString("Press any key to exit");   // Added for IDE use  
  }
}