Answer Posted / 20/04/2008

hashmap class is not syncronized but hasTable is syncronized
. both stores key and value. hashtable is part of legasy
class we can use enumerator interface of this hashtable class.

What is foreach loop in java?

1020

---

Explain the difference between an Interface and an Abstract class?

1175

---

How do you use substring in java?

1143

---

what is aggregation in java?

1021

---

What type of variable is gender?

991

---

Where are local variables stored?

969

---

What is string array?

1071

---

According to java operator precedence, which operator is considered to be with highest precedence?

1090

---

What is oop principle in java?

1168

---

What are void methods?

1028

---

What are the rules for naming an array?

1060

---

How do you use nextline in java?

981

---

Can we define package statement after import statement in java?

1043

---

What is broken and continue statement?

1001

---

Is double bigger than float?

990

---