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Browse Coursesclass stringconcept { public static void main(String args[]) { String a=”Tutor”; String b=”Tutor”; System.out.println(“A=” +a); System.out.println(“B=” +b); System.out.println(“A Hashcode=” +a.hashCode());// a and b shares the same address System.out.println(“B Hashcode=” +b.hashCode()); } } //List of strings predefined methods: class stringconcept { public static void main(String args[]) { String a=”Tutor”; String b=”Tutor”; […]
Here’s a simple Java program to find the maximum and minimum elements in an array public class MinMaxInArray { public static void main(String[] args) { int[] arr = {12, 5, 7, 20, 3, 15}; int max = arr[0]; int min = arr[0]; for (int num : arr) { if (num > max) max […]
Polymorphism: poly–>many class customer { void Fillform(String name,int mob,String email) { ——– ——— } void Fillform(String name,int mob1,int mob2,String email) { ——– ——— } } class Bank { public static void main(String args[]) { Customer a=new Customer(); a.Fillform(“a”,123,"abc@gmail.com”); Customer b=new Customer(); b.Fillform(“b”,123,456,"def@gmail.com”); }} ———————— –>occur at compile time(Method overloading) —>occur at […]
//Final class==> //final class cannot be extended(no any subclass can able to inherit it) Example program import java.io.*; final class Shape { void draw() { System.out.println(“Drawing shape..”); } } class Finalmethod { public static void main(String args[]) { Shape obj=new Shape(); obj.draw(); } }
Here’s a simple Java program to calculate the cost price of one item, based on total selling price and profit import java.util.Scanner; public class CostPriceCalculator { public static void main(String[] args) { Scanner sc = new Scanner(System.in); // Input total selling price and profit System.out.print(“Enter total selling price of 15 items: “); int sellingPrice = […]
Here’s a simple Java program that accepts the number of late days and calculates the fine or displays the membership cancellation message: import java.util.Scanner; public class LibraryFine { public static void main(String[] args) { Scanner sc = new Scanner(System.in); // Input number of late days System.out.print(“Enter number of days late: “); int […]
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 […]
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