Answer Posted / sachin

package abc;

public class Sachin {

int n=4;
public static void main(String... args){
Sachin s=new Sachin();
for (int i=0;i<s.n;i++){
if(i%2==0){
for(int a=0; a<i+1;a++){
System.out.print("@");
}
}else{
for(int a=0; a<i+1;a++){
System.out.print(a+1);
}
}
System.out.println();
}
}
}

What are the 3 types of loops in java?

1087

---

What is Java Package and which package is imported by default?

1098

---

What are access specifiers available in java?

1009

---

Write a method that will remove given character from the string?

1032

---

What is a singleton class? Give a practical example of its usage.

1105

---

How to use arraylist in java netbeans?

1046

---

What is use of valueof () in java?

1054

---

Why can't we override private static methods?

977

---

What are keywords in java?

1010

---

Can an unreferenced object be referenced again?

1193

---

What is bufferedwriter?

973

---

Define inheritance?

1021

---

What happens when you invoke a thread’s interrupt method while it is sleeping or waiting?

984

---

What is the difference in between cpp and java? Can u explain in detail?

1092

---

Describe the various concepts related to object oriented programming (oop).

1030

---