Java operators pro

Set Graphics Color

import java.applet.Applet;

import java.awt.Color;

import java.awt.Graphics;  

public class SetGraphicsColorExample extends Applet

{

public void paint(Graphics g)

{

Color customColor = new Color(10,10,255);

g.setColor(customColor);

g.drawLine(10,10,30,30);

              

g.setColor(Color.red);

g.fillRect(40,40,40,40);

               

g.setColor(Color.green);

g.fillRect(80,80,40,40);

               

g.draw3DRect(81,81,40,40,true);

    }

}

Round Java float and double numbers

public class RounFloatDoubleNumbersExample

{

public static void main(String[] args)

{

System.out.println(Math.round(10f));

System.out.println(Math.round(20.5f));

System.out.println(Math.round(20.5f));

System.out.println(Math.round(-19.4f));

System.out.println(Math.round(-23.5f));

   }

}

 

Find floor value of a number using

public class FindFloorValueExample

{

public static void main(String[] args)

{

System.out.println(Math.floor(70));

System.out.println(Math.floor(30.1));

System.out.println(Math.floor(15.5));

System.out.println(Math.floor(-40)); System.out.println(Math.floor(-42.4));

System.out.println(Math.floor(0));

    }

}

Arithmetic Assignment Operators

public class ArithmeticAssignmentOperatorExample

{

public static void main(String[] args)

{

 i = i + 5;

 i+= 4;

 int i = 5;

 int j = 10;

 System.out.println("i = " + i);

 System.out.println("j = " + j);

   }

}

Arithmetic Operators

public class ArithmeticOperatorsExample

{

 public static void main(String[] args)

{

 System.out.println("Arithmetic operators example :");

   int i = 50 + 20;

   int j = i - 10;

   int k = j * 2;

double l = k / 6;

System.out.println("i = " + i);

System.out.println("j = " + j);

System.out.println("k = " + k);

System.out.println("l = " + l);

   }

}

Increment and Decrement Operators

public class IncrementDecrementOperatorExample

 {

public static void main(String[] args)

{

int i = 10;

int j = 10;

i++;

j++;

System.out.println("i = " + i);

System.out.println("j = " + j);

int k = i++;

int l = ++j;

System.out.println("k = " + k);

System.out.println("l = " + l);

   } 

}

Modulus Operator

public class ModulusOperatorExample

{

 public static void main(String[] args)

 {

    System.out.println("Java Modulus Operator example");

     int i = 50;

     double d = 32;

               

System.out.println("i mod 10 = " + i%10);

System.out.println("d mod 10 = " + d%10);

  }

}