What value does read() return when it has reached the end of a file?

1035

---

What class is the top of the awt event hierarchy?

1113

---

How are the elements of a cardlayout organized?

1085

---

What method is invoked to cause an object to begin executing as a separate thread?

1041

---

What is the relationship between an event-listener interface and an event-adapter class?

1130

---

What must a class do to implement an interface?

1202

---

What value does readline() return when it has reached the end of a file?

1088

---

When a thread blocks on i/o?

1104

---

Which characters may be used as the second character of an identifier, but not as the first character of an identifier?

1055

---

Which javutil classes and interfaces support event handling?

1047

---

What is the immediate superclass of the applet class?

1090

---

Is “abc” a primitive value?

1115

---

What is the map interface?

1127

---

What state does a thread enter when it terminates its processing?

1067

---

What is the difference between the string and stringbuffer classes?

1105

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