stringcompareexample.java

来自「java 完全探索的随书源码」· Java 代码 · 共 50 行

public class StringCompareExample
{
  // Default Constructor
  public StringCompareExample()
  {
    super();
  }

  // Method that actually performs the comparison
  public int compareStrings( String str1, String str2 )
  {
    return str1.compareTo( str2 );
  }

  // Main Method
  public static void main( String[] args )
  {
    if ( args.length != 2 )
    {
      System.out.println( "Usage: java StringCompareExample <String1> <String2>" );
      System.exit( 0 );
    }

    // Create an instance of the example
    StringCompareExample example = new StringCompareExample();
    // Get the strings passed in from the command line
    String str1 = args[0];
    String str2 = args[1];

    // Inform the user what is going on
    System.out.println( "Comparing string: '" + str1 + "' with: '" + str2 + "'");

    // perform the comparison
    int result = example.compareStrings( str1, str2 );

    // check the result for a negative
    if ( result < 0 )
    {
      System.out.println( "String 1 is less than String 2" );
    }
    else if ( result > 0 )
    {
      System.out.println( "String 1 is greater than String 2" );
    }
    else
    {
      System.out.println( "String 1 and String 2 are equal" );
    }
  }
}