Write a program to accept three angles of a triangle and check whether the triangle is possible or not and display the message accordingly.

What is meant by a package? Give an example.

Correct the errors of the given program:

class Sample
{
public static void main(String args[])
{
int n,p;
float k,r;
n=25;p=12; 
if(n=25)
{
k=pow(p,2)
System.out.println("The value of"+p+ "= "+k);
}
else
{
r=Math.square root(n); 
System.out.println("The value of"+n+ "= "+r);
} 
} 
}

What are the different ways to input the values in a Java Programming? Name them