Answer Posted / asit purohit

int num=5672;
int sum=0;
while(num%10!=0)
{
sum=sum+num%10;
num=num/10;
}
System.out.println("sum="+sum);

What is string pool?

1224

---

Can long be null in java?

1084

---

How many inner classes can a class have?

1101

---

Why we used vector class?

1120

---

What is difference between float and double?

1017

---

2) Suppose there are 5 directories having lot of files (say txt files) in each directory. 2 things :- 2.1) You want to search for filenames which have a particular pattern. 2.2) Out of these filtered files you want to search for a particular keyword or a search string. How can you achieve this?

2336

---

What is the size of integer?

1163

---

Give reasons supporting that string is immutable.

1010

---

Write an algorithm program in java for the following question.. In a VLSI design techniques,they used rectangles to design circuits. EVery rectangle is to be placed according to x,y coordinates. Check whether or not two rectangles overlap each other. Here overlapping of rectangles is acceptable, if 1) one rectangle intersect with other. 2) one rectangle fully covers other. The time of algorithm should not exceed o(n logn).

2786

---

What is the basic of java?

1076

---

What do you mean by default constructor in java?

1128

---

What does || mean in code?

1109

---

What is OOP Language?

1130

---

What about instanceof operator in java?

1079

---

Does a function need a return?

1024

---