1 Employee CLASS details prgm no.13

import java.util.*; public class Employee {

      int empsal,emphrs;
      String empname;
      void getinfo(String name,int sal,int hrs)
      {
        empsal=sal;
        empname=name;
        emphrs=hrs;
      }
      
      void addsal()
      {
        if(empsal<500) 
        empsal=empsal+10;
      }
      
      void addwork()
      {
        if(emphrs>6)
        empsal=empsal+5;
      }
      
      public static void main(String args[])
      
      {
        int s,h,x,i;
        String n;
        Scanner sc=new Scanner(System.in);
        System.out.println("enter no of employess:");
        x=sc.nextInt();
        Employee e[]=new Employee[x];
        for(i=0;i<x;i++)
      {
      Employee emp=new Employee();
      System.out.println("enter name of employee : ");
      n=sc.next();
      System.out.println("enter salary");
      s=sc.nextInt();
      System.out.println("enter working hours");
      h=sc.nextInt();
      
      emp.getinfo(n,s,h);
      emp.addsal();
      emp.addwork();
      e[i]=emp;
     }
     
System.out.println("final salary of employee");
for(i=0;i<x;i++)
{
  System.out.println("name:"+e[i].empname);
  System.out.println("salary:"+e[i].empsal);
  System.out.println("working hours"+e[i].emphrs);
} }

ADDING NOTE: line 40,41 il nextInt() kodukan pattila.. bcoz string ann employee name edukunath so String nn sc=next(); ithrem mathi.

2 FInd area perimetr diagonal midpoint iof RECTANGLE USING CLASS

 import java.util.*;
public class Rectangle {
    float length,breadth;
    void setdim(float length,float breadth)
    {
        this.length=length;
        this.breadth=breadth;
    }
    void getarea()
    {
        float area=(length*breadth);
        System.out.println("area of rectangle:"+area);
    }
    void getperimeter()
    {
        float perimeter=(2*(length+breadth));
        System.out.println("perimeter of rectangle;"+perimeter);
    }
    void getdiagonal()
    {
        double diagonal=Math.sqrt((length*length)+(breadth*breadth));
        System.out.println("diagonal of rectangle"+diagonal);
    }
    void getmidpoint(float x,float y)
    {
        x=((length+(2*x))/2);
        y=((breadth+(2*y))/2);
        System.out.println("midpoint:x"+x+"y"+y);
    }
    public static void main(String args[])
    {
        float l,b,x,y;
        Scanner sc=new Scanner(System.in);
        System.out.println("enter length and breadth:" );
        l=sc.nextInt();
        b=sc.nextInt();
        System.out.println("enter coordinates: ");
        x=sc.nextInt();
        y=sc.nextInt();
        Rectangle r=new Rectangle();
        r.setdim(l,b);
        r.getarea();
        r.getperimeter();
        r.getdiagonal();
        r.getmidpoint(x,y);
    }
}

3 Complex no

class Complex 
{
    float real1,imag1,real2,imag2;
    
    
    void sum()
    
    {
        System.out.println("Sum is:"+(rea1+real2)+"+"+(imag1+imag2)+"i");
    }
    
    
    void difference()
    {
        System.out.println("Difference is "+(real1-real2)+"+"+(imag1-imag2));
    }
    
    void product()
    {
        float real=(real1*real2)-(imag1-imag2);
        float imag=(imag1*real2)+(real1*imag2);
        System.out.println("Product is:"+real+"+"+imag+"i");
    }
    
    public static void main(String args[])
    {
        Scanner sc=new Scanner(System.in);
        Complex c=new Complex();
        System.out.println("enter the real part of first complex no.");
        c.real1=sc.nextFloat();
        System.out.println("enter the img part of first complex no");
        c.imag1=sc.nextFloat();
        System.out.println("enter the real part of second complex no: ");
        c.real2=sc.nextFloat();
        System.out.println("enter the img part of second complex no:");
        c.imag2.sc=nextFloat();
        c.sum();
        c.difference();
        c.product();
    }
         }
    
    
    
    
}

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