java ques

a

1. WAP to input any number and find the square and cube of that number.

import java.util.*;

class Number

{

  public static void main()

  {

Scanner sc=new Scanner(System.in);

int num,sq,cube;

System.out.println(“Enter any number :”);

num= sc.nextInt( );

sq=(int)Math.pow(num,2);

cube=(int)Math.pow(num,3);

System.out.println(“Square of the number is :”+sq);

System.out.println(“Cube of the number is :”+cube);

  }

}

2. WAP to input any two values and swap (exchange) them.

Method I

import java.util.*;

class Swap

{

  public static void main()

  {

Scanner sc=new Scanner(System.in);

int a,b,c;

System.out.println(“Enter first value :”);

a= sc.nextInt( );

System.out.println(“Enter second value :”);

b= sc.nextInt( );

c=a;

a=b;

b=c;

System.out.println (“After swapping a =”,a);

System.out.println(“After swapping b =”,b);

  }

}

Method II

import java.util.*;

class Swap

{

  public static void main()

  {

Scanner sc=new Scanner(System.in);

int a,b,c;

System.out.println(“Enter first value :”);

a= sc.nextInt( );

System.out.println(“Enter second value :”);

b= sc.nextInt( );

c=a+b;

a=c-a;

b=c-b;

System.out.println(“After swapping a =”,a);

System.out.println(“After swapping b =”,b);

  }

}

Method III : (Without using third variable)

import java.util.*;

class Swap

{

  public static void main()

  {

Scanner sc=new Scanner(System.in);

int a,b;

System.out.println(“Enter first value :”);

a= sc.nextInt( );

System.out.println(“Enter second value :”);

b= sc.nextInt( );

a=a+b;

b=a-b;

a=a-b;

System.out.println(“After swapping a =”,a);

System.out.println(“After swapping b =”,b);

  }

}

3.WAP to convert inches to feet.

import java.util.*;

class Feet

{

  public static void main()

  {

   Scanner sc=new Scanner(System.in);

 int in,f;

System.out.println(“Enter inch”);

 in= sc.nextInt( );

 f=in/12;

System.out.println(“”Feet”+f);

   }

}

4.WAP to find the angle of a sin value.

import java.util.*;

class SinVal

{

  public static void main( )

  {

   Scanner sc=new Scanner(System.in);

double d,R,S;

System.out.println(“Enter the value in Radian :”);

R=Double.parseDouble(obj.readLine( ));

d=(R*180)/3.14;

S=Math.asin(d);

System.out.println(“Angle value is :”+S);

              }

            }