JAVA TECHNOLOGY

Example1:- class Student { String name; int roll; String address; String course; String instName; void getData() { System.out.println("Student information is:-"); System.out.println("Name: "+name); System.out.println("RollNumber: "+roll); System.out.println("Address is: "+address); System.out.println("Course is : "+course); System.out.println("Institute is : "+instName); } public static void main(String[]args) { Student s=new Student(); s.getData(); } } Output:- C:\JAVATECH>javac Student.java C:\JAVATECH>java Student Student information is:- Name: null RollNumber: 0 Address is: null Course is : null Institute is : null In the output 0 is default value of integer variable and null is default value of all secondary data types. In the above program we have two types of variables, instance variable and local variable. Total five instance variabl...