EX1

// Grade
package javaapplication2;

import java.util.*;
 class Student{
    int marks;
    void grade(int m){
        if(m>=3 && m<=5){
            System.out.println("poor");
        }
        if(m>=6&&m<=7){
            System.out.println("Good");
        }
        if(m>=8&&m<=9){
            System.out.println("Very good");
        }
        
    }
}
public class JavaApplication2 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        System.out.println("Enter marks: ");
        Scanner m  = new Scanner(System.in);
        int mark = m.nextInt();
        Student s = new Student();
        s.grade(mark);
    }
    
}




// sum integers div by 7 btwn 100 to 700
package javaapplication3;

/**
 *
 * @author admin
 */
import java.util.*;
class integer{
    void divbyseven(){
        int sum = 0;
        for(int i=100; i<700;i++ ){
            if(i%7==0){
                sum = sum+i;
            }
    }
        System.out.println(sum);
    }
}
public class JavaApplication3 {
    public static void main(String[] args) {
        integer s = new integer();
        s.divbyseven();
    }
    
}




//Swap
public class Swap {

    public static void main(String[] args) {

        float first = 12.0f, second = 24.5f;

        System.out.println("--Before swap--");
        System.out.println("First number = " + first);
        System.out.println("Second number = " + second);

        first = first - second;
        second = first + second;
        first = second - first;

        System.out.println("--After swap--");
        System.out.println("First number = " + first);
        System.out.println("Second number = " + second);
    }
}





//pattern
class Main {
public static void main(String args[]) {
int n = 5;
//Loop to iterate over each row
for(int i=1;i<=n;i++){
//Loop to iterate over each column of the ith row
for(int j=1;j<=i;j++){
System.out.print(i+ " ");
}
System.out.println();
}
}
       
   
   
}






// largest smallest number
package javaapplication1;

/**
 *
 * @author 22CSEB41
 */
public class JavaApplication1 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
   

 
  int numbers[] = new int[]{55,32,45,98,82,11,9,39,50};

 
  int smallest = numbers[0];
  int largetst = numbers[0];

  for (int i = 1; i < numbers.length; i++) {
   if (numbers[i] > largetst)
    largetst = numbers[i];
   else if (numbers[i] < smallest)
    smallest = numbers[i];
  }

  System.out.println("Largest Number is : " + largetst);
  System.out.println("Smallest Number is : " + smallest);


    }
   
}