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Browse Coursesclass ProtectedExample { protected int value=100; protected void print() { System.out.println(“The value is=” +value); } } class Test extends ProtectedExample { public void show() { print(); } public static void main(String args[]) { Test t=new Test(); t.show(); System.out.println(t.value); }}
//Hierarchical Inheritance class Shape { float length,breadth,radius; } class Rect extends Shape { Rect(float l,float b) { length=l; breadth=b; } float rectangleArea() { return length*breadth; } } class Circle extends Shape { Circle(float r) { radius=r; } float circleArea() { […]
Menu Card: 1. Coffee Rs.15 2. Tea Rs.10 3. Cold Coffee Rs.25 4.MilkShake Rs.50 Enter your choice 2 You have selected Tea. Enter the quantity 3 Total amount=30 Press 1 to continue shopping or any other key to exit 3 Thank you come again.. ———————————————————————– import java.util.*; class Project […]
In Java, a method can be defined with a return type and without arguments. This means the method returns a value but does not take any input parameters. ✅ General Syntax: returnType methodName() { // method body return value; // value must match returnType } In Java, methods can be categorized by whether they return […]
Bitwise Operators Operate on binary representations. Operator Description Example (a=5, b=3) & Bitwise AND a & b = 1 ` ` Bitwise OR ^ Bitwise XOR a ^ b = 6 ~ Bitwise NOT ~a << Left shift a << 1 = 10 >> Right shift a >> 1 = 2 int x=10,y=5; //10==>1010 […]
Java Reserved Keywords: Java has a set of keywords that are reserved words that cannot be used as variables, methods, classes, or any other identifiers. For example: break, char, double, final Literal: Any constant value which can be assigned to the variable is called literal/constant. Literals in Java is a synthetic representation of boolean, numeric, […]
Here’s a Java program to perform basic arithmetic operations (+, -, *, /, %) based on the user’s choice for any two integers. import java.util.Scanner; public class ArithmeticOperations { public static void main(String[] args) { Scanner sc = new Scanner(System.in); // Input two integers System.out.print(“Enter first number: “); int a = sc.nextInt(); System.out.print(“Enter second number: […]
class Marks { public static void main(String args[]) { int m1,m2,m3,m4,m5,total; float avg; System.out.println(“enter 5 marks”); Scanner s=new Scanner(System.in); m1=s.nextInt(); m2=s.nextInt(); m3=s.nextInt(); m4=s.nextInt(); m5=s.nextInt(); total=m1+m2+m3+m4+m5; avg=total/5; System.out.println(“Total=”+total); System.out.println(“Average=”+avg); if(m1>=35 && m2>=35 && m3>=35 && m4>=35 && m5>=35) { System.out.println(“Result=pass”); if(avg>=90 && avg<=100) { System.out.println(“Grade A”); } else if(avg>=80 && avg<=89) { System.out.println(“Grade B”); } else […]
The length and breadth of a rectangle and radius of a circle are input through the keyboard. Write a program to calculate the area and perimeter of the rectangle and the area & circumference of the circle Rectangle: Area==>l*b perimeter==>2(l+b) circle: Area==>Pi*r(2) perimeter==>2pi(r) class Rectangle { public static void main(String args[]) { float l,b,r_area,r_peri,r,c_area,cir; […]
If a marks obtained by a student in 5 different subject are input through the keyboard. Find out the total marks and percentage obtained by a student ————————————— import java.util.Scanner; public class StudentMarks { public static void main(String[] args) { Scanner sc = new Scanner(System.in); // Array to store marks of 5 subjects int[] marks […]
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