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Introduction To Java
JAVA was developed by James Gosling at Sun Microsystems Inc in the year 1991, later acquired by Oracle Corporation. It is a simple programming language. Java makes writing, compiling, and debugging programming easy. It helps to create reusable code and modular programs.
Java is a class-based, object-oriented programming language and is designed to have as few implementation dependencies as possible. A general-purpose programming language made for developers to write once run anywhere that is compiled Java code can run on all platforms that support Java. Java applications are compiled to byte code that can run on any Java Virtual Machine. The syntax of Java is similar to c/c++.
Link for the Problem – Java Static Initializer Block – Hacker Rank Solution
Java Static Initializer Block – Hacker Rank Solution
Problem :
Static initialization blocks are executed when the class is loaded, and you can initialize static variables in those blocks.
It’s time to test your knowledge of Static initialization blocks.
You are given a class Solution with a main method. Complete the given code so that it outputs the area of a parallelogram with breadth B and height H . You should read the variables from the standard input.
If B ≤0 or H≤0 , the output should be “java.lang.Exception: Breadth and height must be positive” without quotes.
Input Format
There are two lines of input. The first line contains : the breadth of the parallelogram. The next line contains : the height of the parallelogram.
Constraints
- -100 ≤ B ≤ 100
- -100 ≤ H ≤ 100
Output Format
If both values are greater than zero, then the main method must output the area of the parallelogram. Otherwise, print “java.lang.Exception: Breadth and height must be positive” without quotes.
Sample input 1
1 3
Sample output 1
3
Sample input 2
-1 2
Sample output 2
java.lang.Exception: Breadth and height must be positive
Java Static Initializer Block – Hacker Rank Solution
import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
public class Solution {
// Java Static Initializer Block - Hacker Rank Solution START
static boolean flag;
static int B,H;
static{
Scanner io = new Scanner(System.in);
B = io.nextInt();
H = io.nextInt();
if(B>0 && H>0)
{
flag = true;
}
else
{
System.out.println("java.lang.Exception: Breadth and height must be positive");
}
}
// Java Static Initializer Block - Hacker Rank Solution END
public static void main(String[] args){
if(flag){
int area=B*H;
System.out.print(area);
}
}//end of main
}//end of class
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