Posts

basic conditions and loops

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1. Bus Ticket Counter Story: A conductor issues tokens to passengers. Each passenger must get a number in sequence. Why: Helps students learn loops. Logic: Input: number of passengers. Use for loop to print numbers 1 to n . Extension: use if inside loop to print only even tokens. Program: import java.util.Scanner; public class tokens{     public static void main(String[] args){         Scanner sc=new Scanner(System.in);         System.out.println("Enter number of passengers:");         int n=sc.nextInt();         for(int i=1;i<=n;i+=2){             System.out.println("Only print even numbers:");          }     } } OUTPUT: 2. Shop Discount Calculator S tory: A shop applies discounts depending on bill amount. Why:  Introduces  if-else  conditions. Logic: Input: bill amount. If bill < 1000 → ...

for and while challenges

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  1. Print numbers from 1 to 10. public class printnum{     public static void main(String[] args){ System.out.println("Print numbers from 1 to 10"); for(int i=1;i<=10;i++){     System.out.print(i + " "); }   }     } OUTPUT: 2. Print even numbers between 1 and 20. class evennum {     public static void main(String[] args){        System.out.println("Print even numbers between 1 and 20");         for(int i=2;i<=20;i+=2){             System.out.print(i + " ");         }     } OUTPUT: 3. Print the multiplication table of a given numbers. class multiplicationtable {     public static void main(String[] args){         int n=1, m=7;         while (n<=10){             System.out.println(n +" X "+ m +" = " + (n*m));          n...