Slip 16

Q1) Write a program to find the Square of given number using function interface. [10 marks] 

//slip16_1

//@FunctionalInterface

interface PrintNumber

{

public void print(int num1);

}

public class PrintSquare

{

public static void main(String[] a)

{

PrintNumber p = n -> System.out.println("Square is: "+ n*n);

p.print(25);

}

}


Q2) Write a program to design a screen using Awt that, [20 marks]

import java.awt.*; 

 class Slip16_2 extends Frame 

 { 

        Slip16_2() 

       { 

            setLayout(new FlowLayout());

    MenuBar mb=new MenuBar();  

            Menu menuFile = new Menu("File"); 

            Menu menuEdit = new Menu("Edit"); 

            Menu menuView = new Menu("About"); 

    MenuItem  m1= new MenuItem ("New"); 

            MenuItem  m2= new MenuItem ("Open"); 

            MenuItem  m3= new MenuItem ("Save");

    MenuItem  m4= new MenuItem ("Show About"); 

            MenuItem  m5= new MenuItem ("Exit"); 

            menuFile.add(m1); 

            menuFile.add(m2); 

            menuFile.add(m3);

menuFile.addSeparator();

menuFile.add(m4);

menuFile.addSeparator();

menuFile.add(m5);

 

         

    mb.add(menuFile);

    mb.add(menuEdit);

    mb.add(menuView);

    setMenuBar(mb); 

    setTitle("Java AWT Example"); 

            setSize(300,100); 

            setResizable(false); 

            setVisible(true); 

      }

      public static void main(String args[]) 

      { 

            new Slip16_2();           

      } 

   }  

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