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96. Write a program in java TO CHECK WHETHER THE ASK NUMBER IS PERFECT NUMBER OR NOT.97. Write a program in java to print the sum of the numbers between 2 to 50.98. Write a program in java to generate the following numeric pattern 1,12,123,1234,12345.99. Write a program in java to check whether the supplied character is alphabet or not.100. Write a program to input any number and check whether the given no. is positive, negative or zero.101. Write a program in java to generate the following series 55555,4444,333,22,1.102. Write a program in java to print all odd numbers from 1 to 100 in descending order.103. Write a program to enter any two numbers and display the smaller one.104. Write a program in java to print numbers 1,3,5……..30.105. Write a program to input the age of a person and find out whether the person is eligible to vote or not.
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96. Write a program in java TO CHECK WHETHER THE ASK NUMBER IS PERFECT NUMBER OR NOT.
import java.util.*;
class PerfectNumber{
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;
}
}
if (sum == num) {
System.out.println("Number is perfect");
} else {
System.out.println("Number is not perfect");
}
}
}
97. Write a program in java to print the sum of the numbers between 2 to 50.
class Sum{
public static void main(String[] args) {
int sum = 0;
for (int i = 2; i <= 50; i++) {
sum = sum + i;
}
System.out.println("Sum is " + sum);
}
}
98. Write a program in java to generate the following numeric pattern 1,12,123,1234,12345.
<string name="a98"> class Pattern{
public static void main(String[] args) {
for (int i = 1; i <= 5; i++) {
for (int j = 1; j <= i; j++) {
System.out.print(j);
}
System.out.println();
}
}
}
99. Write a program in java to check whether the supplied character is alphabet or not.
import java.util.*;
class Alphabet{
public static void main(String[] args) {
char ch = \' \';
System.out.println("Enter character");
Scanner MyScanner = new Scanner(System.in);
ch = MyScanner.next().charAt(0);
if (ch >= \'a\' & & ch <= \'z\') {
System.out.println("Character is alphabet");
} else if (ch >= \'A\' & & ch <= \'Z\') {
System.out.println("Character is alphabet");
} else {
System.out.println("Character is not alphabet");
}
}
}
100. Write a program to input any number and check whether the given no. is positive, negative or zero.
import java.util.*;
class Number{
public static void main(String[] args) {
int num = 0;
System.out.println("Enter number");
Scanner MyScanner = new Scanner(System.in);
num = MyScanner.nextInt();
if (num > 0) {
System.out.println("Number is positive");
} else if (num < 0) {
System.out.println("Number is negative");
} else {
System.out.println("Number is zero");
}
}
}
101. Write a program in java to generate the following series 55555,4444,333,22,1.
import java.util.Scanner;
class Pattern{
public static void main(String[] args)
{
for(int r=5;r>=1;r--)
{
for(int c=1;c <=r;c++)
{
System.out.print(r);
}
System.out.print(" ");
}
}
}
102. Write a program in java to print all odd numbers from 1 to 100 in descending order.
import java.util.*;
class DescendingOrder{
public static void main(String[] args) {
for (int i = 100; i >= 1; i--) {
if (i % 2 != 0) {
System.out.println(i);
}
}
}
public static void main(String[] args) {
for (int i = 100; i >= 1; i--) {
if (i % 2 != 0) {
System.out.println(i);
}
}
}
}
103. Write a program to enter any two numbers and display the smaller one.
import java.util.*;
class Smallernumber{
public static void main(String[] args) {
int num1 = 0;
int num2 = 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();
if (num1 > num2) {
System.out.println("Smaller number is " + num2);
} else if (num1 < num2) {
System.out.println("Smaller number is " + num1);
} else {
System.out.println("Both numbers are equal");
}
}
}
104. Write a program in java to print numbers 1,3,5……..30.
import java.util.*;
class Series{
public static void main(String[] args) {
for (int i = 1; i <= 30; i++) {
if (i % 2 != 0) {
System.out.println(i);
}
}
}
}
105. Write a program to input the age of a person and find out whether the person is eligible to vote or not.
import java.util.*;
class Vote{
public static void main(String[] args) {
int age = 0;
System.out.println("Enter age");
Scanner MyScanner = new Scanner(System.in);
age = MyScanner.nextInt();
if (age >= 18) {
System.out.println("Person is eligible to vote");
} else {
System.out.println("Person is not eligible to vote");
}
}
}