lab programs on java and dbms for students access

lab programs on java and dbms for students access

• 1.
  HELLO WORLD class HelloWorld{ // Your program begins with a call to main(). // Prints "Hello, World" to the terminal window. public static void main(String args[]) { System.out.println("Hello, World"); } } ADDING OF TWO INTEGERS import.java.io.*; class Main { public static void main(String[] args) { int first = 10; int second = 20; // add two numbers int sum = first + second; System.out.println(first + " + " + second + " = " + sum); } }
• 2.
  operators: class Main { publicstatic void main(String[] args) { // declare variables int a = 12, b = 5; // addition operator System.out.println("a + b = " + (a + b)); // subtraction operator System.out.println("a - b = " + (a - b)); // multiplication operator System.out.println("a * b = " + (a * b)); } } ASCII VALUE OF THE CHARACTER public class AsciiValue { public static void main(String[] args) { char ch = 'a'; int ascii = ch; // You can also cast char to int int castAscii = (int) ch; System.out.println("The ASCII value of " + ch + " is: " + ascii); System.out.println("The ASCII value of " + ch + " is: “+castAscii); } }
• 3.
  • SWAPPING OFTWO NUMBERS public class SwapNumbers { public static void main(String[] args) { float first = 1.20f, second = 2.45f; System.out.println("--Before swap--"); System.out.println("First number = " + first); System.out.println("Second number = " + second); // Value of first is assigned to temporary float temporary = first; // Value of second is assigned to first first = second; // Value of temporary (which contains the initial value of first) is assigned to second second = temporary; System.out.println("--After swap--"); System.out.println("First number = " + first); System.out.println("Second number = " + second); } • }
• 4.
  Class reverse { Publicstatic int reverse( int num) { Int reverse=0; While(num!=0) { Reverse=reverse*10+num%10; Num/=10; } Return reverse; } }