I’ve included a list of some of the Java programs below. You may also view all of the Java programs on our mobile app. I strongly advise you to use our mobile app for a better experience.
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186.Write a program in java to print sum of square of any three ask numbers.
import java.util.Scanner;
class SquareOfNumbers {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter your number");
int num1 = sc.nextInt();
System.out.println("Enter your number");
int num2 = sc.nextInt();
System.out.println("Enter your number");
int num3 = sc.nextInt();
int sum = (num1 * num1) + (num2 * num2) + (num3 * num3);
System.out.println("The sum of square of three numbers is " + sum);
}
}
187. Write a program in java to ask any string and check whether the given string is palindrome or not.
import java.util.Scanner;
class Palindrome {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter your string");
String str = sc.nextLine();
String rev = "";
for (int i = str.length() - 1; i >= 0; i--) {
rev = rev + str.charAt(i);
}
if (str.equals(rev)) {
System.out.println("The string is palindrome");
} else {
System.out.println("The string is not palindrome");
}
}
}
188. Write a program to input a year and display whether that year is a leap year or not.
import java.util.Scanner;
class LeapYear {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter your year");
int year = sc.nextInt();
if (year % 4 == 0) {
if (year % 100 == 0) {
if (year % 400 == 0) {
System.out.println("The year is leap year");
} else {
System.out.println("The year is not leap year");
}
} else {
System.out.println("The year is leap year");
}
} else {
System.out.println("The year is not leap year");
}
}
}
189. Write a program in java to print all natural numbers from 1 to 100 also print its sum.
import java.util.Scanner;
class Sum {
public static void main(String[] args) {
int sum = 0;
for (int i = 1; i <= 100; i++) {
System.out.println(i);
sum = sum + i;
}
System.out.println("The sum of all natural numbers is " + sum);
}
}
190. Write a program in java to convert hexadecimal number to decimal number.
import java.util.Scanner;
class HexaDecimalToDecimal {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter your hexadecimal number");
String hex = sc.nextLine();
int dec = 0;
for (int i = 0; i < hex.length(); i++) {
char ch = hex.charAt(i);
if (ch == \'A\') {
dec = dec + 10 * (int) Math.pow(16, hex.length() - 1 - i);
} else if (ch == \'B\') {
dec = dec + 11 * (int) Math.pow(16, hex.length() - 1 - i);
} else if (ch == \'C\') {
dec = dec + 12 * (int) Math.pow(16, hex.length() - 1 - i);
} else if (ch == \'D\') {
dec = dec + 13 * (int) Math.pow(16, hex.length() - 1 - i);
} else if (ch == \'E\') {
dec = dec + 14 * (int) Math.pow(16, hex.length() - 1 - i);
} else if (ch == \'F\') {
dec = dec + 15 * (int) Math.pow(16, hex.length() - 1 - i);
} else {
dec = dec + (int) ch * (int) Math.pow(16, hex.length() - 1 - i);
}
}
System.out.println("The decimal number is " + dec);
}
}
191. Write a program to input the age of a person and find out whether the person is eligible to drive or not.
class Drive {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter your age");
int age = sc.nextInt();
if (age >= 18) {
System.out.println("You are eligible to drive");
} else {
System.out.println("You are not eligible to drive");
}
}
}
192. Write a program to enter any 20 numbers and display the greatest one using array.
import java.util.Scanner;
class GreatestNumber {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter your 20 numbers");
int[] num = new int[20];
for (int i = 0; i < 20; i++) {
num[i] = sc.nextInt();
}
int max = num[0];
for (int i = 0; i < 20; i++) {
if (num[i] > max) {
max = num[i];
}
}
System.out.println("The greatest number is " + max);
}
}
193. Write a program in java TO PRINT L.C.M OF A GIVEN ANY TWO NUMBERS.
import java.util.Scanner;
class LCM {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter two numbers");
int num1 = sc.nextInt();
int num2 = sc.nextInt();
int lcm = 0;
for (int i = 1; i <= num1 &; &; i <= num2; i++) {
if (num1 % i == 0 &; &; num2 % i == 0) {
lcm = i;
}
}
System.out.println("The least common multiple is " + lcm);
}
}
194. Write a program in java to enter any 10 numbers and find the sum of even numbers.
class Series
{
public static void main(String args[]){
int total = 0, sum=0,evenNumber=2,n=10;
while(total !=n) {
total++;
sum+=evenNumber;
evenNumber +=2;
}
System.out.println("sum of first 10 even number is : "+ sum);
}
}
195. Write a program to divide a number by another number and find the quotient and remainder.
import java.util.Scanner;
class QuotientAndReminder {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter your two numbers");
int num1 = sc.nextInt();
int num2 = sc.nextInt();
int quotient = num1 / num2;
int remainder = num1 % num2;
System.out.println("The quotient is " + quotient);
System.out.println("The remainder is " + remainder);
}
}