First programm:
Write a Java program to print an int, a double and a char on screen.
package level2;
public class Level2 {
public static void main(String[] args) {
int s = 34;
double b = 34.6;
char d = 'T';
System.out.println("int : "+s+"\nfloat : "+b+"\nchar : "+d);
}
}
Program No 2:
Write a program to print the area of a rectangle respectively.
package level2;
import java.util.Scanner;
public class Level2 {
public static void main(String[] args) {
//find area of rectangle
int num1;
int num2;
double area;
Scanner sc=new Scanner(System.in);//using scanner
System.out.print("enter 1st number =");
num1=sc.nextInt();//Getting input from user
System.out.print("Enter 2nd number =");
num2=sc.nextInt();
area=num1*num2;
System.out.print("The area of rectangle is =");
System.out.print(area);
}
}
Program No 3:
Write a program to print the product of the numbers 8.2 and 6.
package level2;
import java.util.Scanner;
public class Level2 {
public static void main(String[] args) {
//Product of Numbers
double a=8.2;
int b=6;
//muldtiplication of numbers is taking as:
double total;
total=a*b;
System.out.print(total);
}
}
Program No 4:
Print the ASCII value of the character 'h'.
package its.a.program;
import java.util.Scanner;
public class ItsAProgram {
public static void main(String[] args) {
//finding ascii value of any character
char a;
System.out.println("Enter a any charater :");
Scanner t=new Scanner(System.in);
//ASCII value are find as:
a=t.next().charAt(0);
int g=a;
System.out.print("value of ASCII "+a+" is " +g);
}
}
Program No 5:
Write a program to assign a value of 100.235 to a double variable and then convert it to int.
package its.a.program;
import java.util.Scanner;
public class ItsAProgram {
public static void main(String[] args) {
System.out.println("Variable contain value =");
double Janii =100.235;//assigning value to double variable janii:
System.out.println(Janii);//we want answer in integer so
System.out.println("By converting double into integer we get :");
System.out.print((int)Janii);
}
}
Program No 6:
Write a program to add 3 to the ASCII value of the character 'd' and print the equivalent character.
package its.a.program;
public class ItsAProgram {
public static void main(String[] args) {
//ASCII value
int a=3+'d';
System.out.println((char)a);
}
}
Program No 7:
Write a program to add an integer variable having value 5 and a double variable having value 6.2.
package its.a.program;
public class ItsAProgram {
public static void main(String[] args) {
int num1=5;
double num2=6.2;
double total=num1+num2;
System.out.println("The sum is =");
System.out.println(total);
}
}
Program No 8:
Write a program to find the square of the number 3.9.
package its.a.program;
import java.util.Scanner;
public class ItsAProgram {
public static void main(String[] args) {
int a;
Scanner sc=new Scanner(System.in);
System.out.println("Enter the number to find square =");
a=sc.nextInt();
System.out.println("the Square of number is =");
System.out.println(a*a);
}
}
programm 9
