matchstrings.java

Java2入门经典第四章源码

public class MatchStrings
{
  public static void main(String[] args)
  {
    String string1 = "Too many ";
    String string2 = "cooks";
    String string3 = "Too many cooks";

  // Make string1 and string3 refer to separate strings that are identical
    string1 += string2;

    // Display the contents of the strings
    System.out.println("Test 1");
    System.out.println("string3 is now: " + string3);
    System.out.println("string1 is now: " + string1);

    if(string1.equals(string3))                  // Now test for equality
      System.out.println("string1.equals(string3) is true." +
                                 " so strings are equal.");
    else
      System.out.println("string1.equals(string3) is false." +
                          " so strings are not equal.");

    // Now make string1 and string3 refer to strings differing in case.
    string3 = "TOO many cooks";

    // Display the contents of the strings
    System.out.println("Test 2");
    System.out.println("\n\nstring3 is now: " + string3);
    System.out.println("string1 is now: " + string1);

    if(string1.equals(string3))                   // Compare for equality
      System.out.println("string1.equals(string3) is true " +
                                 " so strings are equal.");
    else
      System.out.println("string1.equals(string3) is false" +
                                 " so strings are not equal.");

    if(string1.equalsIgnoreCase(string3))        // Compare, ignoring case
      System.out.println("string1.equalsIgnoreCase(string3) is true" +
                                 " so strings are equal ignoring case.");
    else
      System.out.println("string1.equalsIgnoreCase(string3) is false" +
                                 " so strings are different.");
  }
}