?? constructortest2.java
字號(hào):
// initialization/ConstructorTest2.java
// TIJ4 Chapter Initialization, Exercise 2, p158
/* Create a class with a String field that is initialized at the point of
* definition, and another one that is initialized by the constructor. What is
* the difference between the two approaches.
*/
class Tester2 {
String s1;
String s2 = "hello";
String s3;
Tester2() { s3 = "good-bye"; }
}
public class ConstructorTest2 {
public static void main(String[] args) {
Tester2 t = new Tester2();
System.out.println("t.s1: " + t.s1);
System.out.println("t.s2: " + t.s2);
System.out.println("t.s3: " + t.s3);
}
}
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