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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156. Write a program in java to generate the series 10,12,15,19…………..14th terms.
class Series {
public static void main(String[] args) {
int a = 10;
int b=2;
for (int i = 1; i < 14; i++) {
System.out.println(a);
a=a+b;
b=b+1;
}
}
}
156. Write a program in java to ask any string and check whether the first character of a ask string is alphabet number or symbol.
import java.util.Scanner;
class Alphabet {
public static void main(String[] args) {
String str = "";
System.out.println("Enter string");
Scanner MyScanner = new Scanner(System.in);
str = MyScanner.nextLine();
if (str.charAt(0) >= \'a\' &; &; str.charAt(0) <= \'z\' || str.charAt(0) >= \'A\' &; &; str.charAt(0) <= \'Z\') {
System.out.println("First character is alphabet");
} else {
System.out.println("First character is not alphabet");
}
}
}
157. Write a program in java to ask any string and reverse it.
import java.util.Scanner;
class ReverseString {
public static void main(String[] args) {
String str = "";
System.out.println("Enter string");
Scanner MyScanner = new Scanner(System.in);
str = MyScanner.nextLine();
String rev = "";
for (int i = str.length() - 1; i >= 0; i--) {
rev = rev + str.charAt(i);
}
System.out.println("Reverse string is " + rev);
}
}
158. Write a program in java to enter any 10 numbers and sort in descending order.
class DescendingOrder {
public static void main(String[] args) {
int [] arr = new int [] {7, 3, 5, 6, 2};
int temp = 0;
System.out.println("Elements of original array: ");
for (int i = 0; i < arr.length; i++) {
System.out.print(arr[i] + " ");
}
for (int i = 0; i < arr.length; i++) {
for (int j = i+1; j < arr.length; j++) {
if(arr[i] < arr[j]) {
temp = arr[i];
arr[i] = arr[j];
arr[j] = temp;
}
}
}
System.out.println();
System.out.println("Elements of array sorted in descending order: ");
for (int i = 0; i < arr.length; i++) {
System.out.print(arr[i] + " ");
}
}
}
159. Write a program in java to ask number and find sum of cube of even digits.
import java.util.Scanner;
class SumOfCubeOfEvenNumbers {
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);
}
}
160. Write a program in java TO ENTER ANY DIGIT AND PRINT ODD DIGITS.
import java.util.Scanner;
class PrintOddDigits {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter Any Number");
int n = sc.nextInt();
int r;
while (n != 0) {
r = n % 10;
if (r % 2 == 1) {
System.out.println(r);
}
n = n / 10;
}
}
}
161. Write a program to enter any three numbers and display the greatest one.
import java.util.Scanner;
class GreatestNumber {
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("Greatest number is " + num1);
} else if (num2 > num1 &; &; num2 > num3) {
System.out.println("Greatest number is " + num2);
} else {
System.out.println("Greatest number is " + num3);
}
}
}
162. Write a program in java to ask any string and count total no. of vowels consonants and words.
class Word {
public static void main(String[] args) {
String str = "";
int vowels = 0;
int consonants = 0;
int words = 0;
System.out.println("Enter string");
Scanner MyScanner = new Scanner(System.in);
str = MyScanner.nextLine();
for (int i = 0; i < str.length(); i++) {
if (str.charAt(i) == \'a\' || str.charAt(i) == \'e\' || str.charAt(i) == \'i\' || str.charAt(i) == \'o\' || str.charAt(i) == \'u\' || str.charAt(i) == \'A\' || str.charAt(i) == \'E\' || str.charAt(i) == \'I\' || str.charAt(i) == \'O\' || str.charAt(i) == \'U\') {
vowels++;
} else if (str.charAt(i) == \' \') {
words++;
} else {
consonants++;
}
}
System.out.println("No. of vowels is " + vowels);
System.out.println("No. of consonants is " + consonants);
System.out.println("No. of words is " + words);
}
}
163. Write a Java program to sum values of an array.
class SumArray {
public static void main(String[] args) {
int arr[] = {3,5 , 2, 4, 1, 6, 0, 7,};
int sum = 0;
for (int i : arr)
sum += i;
System.out.println("The sum is " + sum);
}
}
164. Write a program in java to generate the series 2,2,4,6,10…………13th term.
class FibonacciSeries{
public static void main(String args[])
{
int n1=2,n2=2,n3,i,count=14;
System.out.print(n1+" "+n2);
for(i=2;i <count; ++i)
{
n3=n1+n2;
System.out.print(" "+n3);
n1=n2;
n2=n3;
}
}}
165. Write a program in java to generate the following series 13579,1357,135,13,1.
class SumArray {
public static void main(String[] args) {
int x = 13579;
System.out.print(x+" ");
while(x>1){
x = x / 10;
System.out.print(x+" ");
}
}
}