debug3_1.java

北京大学出版社的

package questions.c3;
public class Debug3_1 {
   public static void main( String[] args ) {
      StringBuffer wild = "fox";
      StringBuffer tame = "dog";
      wild = tame;
      tame.setCharAt( 0,'c' );
      tame.setCharAt( 1,'a' );
      tame.setCharAt( 2,'t' );
      wild.insert( 1, "wild " );
      tame.insert( 1, "pet " );
      System.out.println( "A " + wild + " is wild" );
      System.out.println( "A " + tame + " is tame" );
   }
}