How to compile and run java programs
Compile: - javac JavaFileName
Run Java: - java JavaClassName
Let’s take an example of java program:
//Hello.java
class Hello
{
public static void main(String args[])
{
System.out.println("Welcome to Java!");
}
}
Compile: - javac Hello.java
Run Java: - java Hello
Program No. – 01
Write a program to print hello in java.
class Hello
{
public static void main(String args[])
{
System.out.println("Welcome to Java!");
}
}
Program No. – 02
Write a program for object and class in java.
class Rectangle
{
privateintl,b;
public void setDimension(intx,int y)
{
l=x; b=y;
}
publicint area()
{
return l*b;
}
public void display()
{
System.out.println("Length="+l); System.out.println("Breadth="+b);
}
public static void main(String ac[])
{
Rectangle r=new Rectangle(); r.setDimension(5,10); r.display();
System.out.println("Area="+r.area());
}
}
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