Loop: A Block of instructions execute repeatedly as long the condition is valid. Note: Block executes only once whereas Loop executes until condition become False Java Supports 3 types of Loops: For Loop: We use for loop only when we know the number of repetitions. For example, While loop: We use while loop when we …
for loop: Execute a block of instructions repeatedly as long as the condition is valid. We use for loop only when we know the number of iterations to do. Syntax: for(init ; condition ; modify){ statements;} for(start ; stop ; step){ statements;} FlowChart: Print 1 to 10 Numbers: class Code{ public static void main(String[] args) { …
Find Sum of First N numbers import java.util.Scanner;class Code{ public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.println(“Enter n value : “); int n = scan.nextInt(); int sum=0; for (int i=1 ; i<=n ; ++i) { sum = sum+i; } System.out.println(“Sum of first ” + n + ” numbers is : ” …
Program to print factors of given number import java.util.Scanner;class Code{ public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.print(“Enter n value : “); int n = sc.nextInt(); for (int i=1 ; i<=n ; i++) { if(n%i==0) { System.out.println(i + ” is a factor”); } } }} Program to count factors of given …
Program to check the input number is Prime or Not import java.util.Scanner;class Code{ public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.print(“Enter n value : “); int n = sc.nextInt(); int count=0; for (int i=1 ; i<=n ; i++) { if(n%i==0) count++; } if(count==2) System.out.println(“Prime Number”); else System.out.println(“Not a Prime Number”); }} …
While loop: Execute a block of instructions repeatedly until the condition is false. We use while loop only when don ’t know the number of iterations to do. Syntax: while(condition){ statements;} FlowChart: Program to Display Last Digit of given number import java.util.Scanner;class Code{ public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.print(“Enter …
Check the given number is Even or Odd until user exits: import java.util.Scanner;public class Check{ public static void main(String[] args) { Scanner scan = new Scanner(System.in); while(true) { System.out.print(“Enter a number : “); int num = scan.nextInt(); if(num%2==0) { System.out.println(num + ” is even.”); } else { System.out.println(num + ” is odd.”); } System.out.print(“Do you …
Program to print Multiplication table for given number until user exits: import java.util.Scanner;public class Check{ public static void main(String[] args) { Scanner scan = new Scanner(System.in); while(true) { System.out.print(“Enter table number : “); int n = scan.nextInt(); for(int i=1 ; i<=10 ; i++) { System.out.println(n + ” * ” + i + ” = ” …
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Program to Print given Number is Prime or Not until User Exits: import java.util.Scanner;public class Check{ public static void main(String[] args) { Scanner scan = new Scanner(System.in); while(true) { System.out.print(“Enter table number : “); int n = scan.nextInt(); int count=0; for(int i=1 ; i<=n ; i++) { if(n%i==0) { count++; } } if(count==2) { System.out.println(n …
Perform Arithmetic Operations in Menu Driven Program using If Block: import java.util.Scanner;class Code{ public static void main(String[] args) { Scanner sc = new Scanner(System.in); while(true) { System.out.println(“1. Add”); System.out.println(“2. Subtract”); System.out.println(“3. Multiply”); System.out.println(“4. Divide”); System.out.println(“5. Quit”); System.out.print(“Enter your choice : “); int ch = sc.nextInt(); if(ch==1) { System.out.println(“Enter 2 numbers : “); int a=sc.nextInt(); int …
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