Static initialization blocks are executed when the class is loaded, and you can initialize static variables in those 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 B: the breadth of the parallelogram. The next line contains H : 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
Solution
import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
public class Solution {
static int B;
static int H;
static boolean flag=false;
static{
Scanner sc=new Scanner(System.in);
B=sc.nextInt();
H=sc.nextInt();
flag=false;
if( H <= 0 || B <= 0){
System.out.println("java.lang.Exception: Breadth and height must be positive");
}
else{
flag=true;
}
}
public static void main(String[] args){
if(flag){
int area=B*H;
System.out.print(area);
}
}//end of main
}//end of class
