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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125. Write a program to enter any three numbers and display the smallest one.
import java.util.*;
class SmallestOne{
public static void main(String[] args) {
int num1 = 0;
int num2 = 0;
int num3 = 0;
System.out.println("Enter first number");
Scanner MyScanner = new Scanner(System.in);
num1 = MyScanner.nextInt();
System.out.println("Enter second number");
num2 = MyScanner.nextInt();
System.out.println("Enter third number");
num3 = MyScanner.nextInt();
if (num1 < num2 && num1 < num3) {
System.out.println("Smallest number is " + num1);
} else if (num2 < num1 && num2 < num3) {
System.out.println("Smallest number is " + num2);
} else {
System.out.println("Smallest number is " + num3);
}
}
}
126. Write a program in java to print the sum of square of odd numbers up to 100.
import java.util.*;
class OddNumber{
public static void main(String[] args) {
int sum = 0;
for (int i = 1; i <= 100; i++) {
if (i % 2 != 0) {
sum = sum + i * i;
}
}
System.out.println("Sum of square of odd numbers is " + sum);
}
}
126. Write a program in java to print the sum of cube of even numbers between 2 to 50.
import java.util.*;
class CubeOfEvenNumbers{
public static void main(String[] args) {
int sum = 0;
for (int i = 2; i <= 50; i++) {
if (i % 2 == 0) {
sum = sum + i * i * i;
}
}
System.out.println("Sum of cube of even numbers is " + sum);
}
}
127. Write a program to input a mark in a subject of a student and check if the student is pass or not.
import java.util.Scanner;
class Result {
public static void main(String[] args) {
int mark = 0;
System.out.println("Enter mark");
Scanner MyScanner = new Scanner(System.in);
mark = MyScanner.nextInt();
if (mark >= 40) {
System.out.println("Pass");
} else {
System.out.println("Fail");
}
}
}
128. Write a program in java to ask number and find product of digits.
import java.util.Scanner;
class ProductOfDigit {
public static void main(String[] args) {
int num = 0;
System.out.println("Enter number");
Scanner MyScanner = new Scanner(System.in);
num = MyScanner.nextInt();
int prod = 1;
while (num != 0) {
int rem = num % 10;
prod = prod * rem;
num = num / 10;
}
System.out.println("Product of digits is " + prod);
}
}
129. Write a program in java using to print first 13 odd numbers.
import java.util.Scanner;
class OddNumbers{
public static void main(String[] args) {
for (int i = 1; i <= 25; i++) {
if (i % 2 != 0) {
System.out.println(i);
}
}
}
}
130. Write a program in java to ask any number and find sum of factors.
import java.util.Scanner;
class SumOfFactors{
public static void main(String[] args) {
int num = 0;
System.out.println("Enter number");
Scanner MyScanner = new Scanner(System.in);
num = MyScanner.nextInt();
int sum = 0;
for (int i = 1; i <= num; i++) {
if (num % i == 0) {
sum = sum + i;
}
}
System.out.println("Sum of factors is " + sum);
}
}
131. Write a program in java to enter any ten strings and sort in descending order.
import java.util.Scanner;
class Sort{
public static void main(String[] args) {
String[] str = new String[10];
System.out.println("Enter 10 strings");
Scanner MyScanner = new Scanner(System.in);
for (int i = 0; i < 10; i++) {
str[i] = MyScanner.nextLine();
}
for (int i = 0; i < 10; i++) {
for (int j = i + 1; j < 10; j++) {
if (str[i].compareTo(str[j]) < 0) {
String temp = str[i];
str[i] = str[j];
str[j] = temp;
}
}
}
for (int i = 0; i <10; i++) {
System.out.println(str[i]);
}
}
}
132. Write a program in java to ask any string and print only vowels.
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;
class Vowels {
public static void main(String args[]) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter an String : ");
String str = scanner.next();
Set<Character> set = new HashSet<Character>();
for (int i = 0; i < str.length(); i++) {
char char = str.charAt(i);
if (isVowel(char)) {
set.add(char);
}
}
System.out.println("Vowels are:");
for (Character c : set) {
System.out.print(" " + c);
}
scanner.close();
}
public static boolean isVowel(char character) {
if (character == \'a\' || character == \'A\' || character == \'e\' || character == \'E\' ||
character == \'i\' || character == \'I\' || character == \'o\' || character == \'O\' ||
character == \'u\' || character == \'U\') {
return true;
} else {
return false;
}
}
}
133. Write a program in java to ask any number and print the factorial of a given number.
import java.util.Scanner;
class Factorial{
public static void main(String[] args) {
int num = 0;
System.out.println("Enter number");
Scanner MyScanner = new Scanner(System.in);
num = MyScanner.nextInt();
int fact = 1;
for (int i = 1; i <= num; i++) {
fact = fact * i;
}
System.out.println("Factorial of " + num + " is " + fact);
}
}
134. Write a program in java to print square of all numbers from 1 to 50.
import java.util.Scanner;
class Square{
public static void main(String[] args) {
for (int i = 1; i <= 50; i++) {
System.out.println(i * i);
}
}
}