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Ifelse_basic.txt
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Ifelse_basic.txt
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import java.util.Scanner;
public class Ifelse {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
1)voter id
=>user input
int age;
System.out.print("Enter age: ");
age= sc.nextInt();
if (age>=18){
System.out.println("Valid for vote");
}
else{
System.out.println("Not valid for vote");
}
Output:
Enter age: 22
Valid for vote
--------------------------------------------------------------------
2)one number max a>10
one number :
int a;
System.out.print("Enter a number: ");
a= sc.nextInt();
if(a>10){
System.out.println(a + " is maximum");
}
else{
System.out.println(a + " is not maximum");
}
Output:
Enter a number: 12
12 is maximum
--------------------------------------------------------------------
3)two number max a b
a ya b dono mey se bda konsa hey
int a, b;
System.out.print("Enter a: ");
a= sc.nextInt();
System.out.print("Enter b: ");
b= sc.nextInt();
if(a>b){
System.out.println(a + " is maximum");
}
else if(b>a){
System.out.println(b + " is maximum");
}
else{
System.out.println(a + " and " + b + " are equal");
}
Output:
Enter a: 45
Enter b: 37
--------------------------------------------------------------------
4)three number max a b c
tenno mey se konsa badha hey
int a, b, c, max=0;
System.out.print("Enter a: ");
a= sc.nextInt();
System.out.print("Enter b: ");
b= sc.nextInt();
System.out.print("Enter c: ");
c= sc.nextInt();
if(a>b && a>c){
max=a;
}
else if(b>a && b>c){
max= b;
}
else if(c>a && c>b){
max=c;
}
else{
System.out.println("you entered same numbers");
}
System.out.println(max + " is maximum");
Output:
Enter a: 12
Enter b: 15
Enter c: 14
15 is maximum
--------------------------------------------------------------------
5)five number max abcde
int a, b, c, d, e;
System.out.print("Enter a: ");
a= sc.nextInt();
System.out.print("Enter b: ");
b= sc.nextInt();
System.out.print("Enter c: ");
c= sc.nextInt();
System.out.print("Enter d: ");
d= sc.nextInt();
System.out.print("Enter e: ");
e= sc.nextInt();
if (a>b && a>c && a>d && a>e){
System.out.println(a + " is maximum");
}
else if(b>a && b>c && b>d && b>e){
System.out.println(b + " is maximum");
}
else if(c>a && c>b && c>d && c>e){
System.out.println(c + " is maximum");
}
else if(d>a && d>b && c>d && c>e){
System.out.println(d + " is maximum");
}
else if(d>a && d>b && c>d && c>e){
System.out.println(d + " is maximum");
}
else if(e>a && e>b && e>c && e>d){
System.out.println(e + " is maximum");
}
Output:
Enter a: 12
Enter b: 13
Enter c: 14
Enter d: 13
Enter e: 16
16 is maximum
--------------------------------------------------------------------
6) user
-9 negative integer
5 positive integer
0 =zero
int a;
System.out.print("Enter a: ");
a= sc.nextInt();
if(a>0){
System.out.println(a + " is a positive integer");
}
else if(a<0){
System.out.println(a + " is a negative integer");
}
else{
System.out.println(a + " is equal to zero");
}
Output:
Enter a: -8
-8 is a negative integer
--------------------------------------------------------------------
7) vowel and consonat
->a e i o u vowel
consonant
char ch;
System.out.print("Enter a character: ");
ch= sc.next().charAt(0);
if((ch>='a' && ch<='z') || (ch>='A' && ch<='Z')){
if(ch=='a' || ch=='e' || ch=='i' || ch=='o' || ch=='u' || ch=='A' || ch=='E' || ch=='I' || ch=='O' || ch=='U'){
System.out.println(ch + " is a vowel");
}
else{
System.out.println(ch + " is a consonant");
}
}
else{
System.out.println("Entered character is not an alphabet");
}
Output:
Enter a character: j
j is a consonant
--------------------------------------------------------------------
8)divisible 5 and 11
a)num dono se divide ho jb process ho
b)num kisi se bhi divide ho jb process ho
int num;
System.out.print("Enter a number: ");
num= sc.nextInt();
if(num%5==0 && num%11==0){
System.out.println(num + " is divisible by both 5 and 11");
}
else if(num%5==0 || num%11==0){
System.out.println(num + " is divisible by either 5 or 11");
}
else{
System.out.println(num + " is neither divisible by 5 nor 11");
}
Output:
Enter a number: 55
55 is divisible by both 5 and 11
//second method
int num;
System.out.print("Enter a number: ");
num= sc.nextInt();
if(num%5==0){
if(num%11==0){
System.out.println(num + " is divisible by both 5 and 11");
}
else {
System.out.println(num + " is only divisible by 5");
}
}
else if(num%11==0){
System.out.println(num + " is only divisible by 11");
}
else{
System.out.println(num + " is neither divisible by 5 nor 11");
}
Output:
Enter a number: 22
22 is only divisible by 11
--------------------------------------------------------------------
9)uper case and lower case input by user
A p
char ch;
System.out.print("Enter an alphabet: ");
ch= sc.next().charAt(0);
if(ch>='a' && ch<='z'){
System.out.println("lower case input");
}
else if(ch>='A' && ch<='Z'){
System.out.println("upper case input");
}
else{
System.out.println("input is not an alphabet");
}
Output:
Enter an alphabet: P
upper case input
--------------------------------------------------------------------
10)if the inpute is the integer then check ,check number 7 or 3 k multiple se divisible hey kya
int n;
System.out.print("Enter a number: ");
n= sc.nextInt();
if(n>0){
if(n%7==0){
if(n%3==0){
System.out.println(n + " is divisible by both 7 and 3");
}
else{
System.out.println(n + " is only divisible by 7");
}
}
else if(n%3==0){
System.out.println(n + " is only divisible by 3");
}
}
else{
System.out.println("The user input is not a positive integer");
}
Output:
Enter a number: 14
14 is only divisible by 7
--------------------------------------------------------------------
11)number swap (two ways )
//Without using third variable
int n1, n2;
System.out.print("Enter number 1: ");
n1= sc.nextInt();
System.out.print("Enter number 2: ");
n2= sc.nextInt();
System.out.println("Real num 1 is " + n1 );
System.out.println("Real num 2 is " + n2 );
n1+=n2;
n2=n1-n2;
n1=n1-n2;
System.out.println("Swapped num 1 is " + n1);
System.out.println("Swapped num 2 is " + n2);
Output:
Enter number 1: 12
Enter number 2: 14
Real num 1 is 12
Real num 2 is 14
Swapped num 1 is 14
Swapped num 2 is 12
//Using third variable
int n1, n2, n3;
System.out.print("Enter number 1: ");
n1= sc.nextInt();
System.out.print("Enter number 2: ");
n2= sc.nextInt();
System.out.println("Real num 1 is " + n1 );
System.out.println("Real num 2 is " + n2 );
n3=n1;
n1=n2;
n2=n3;
System.out.println("Swapped num 1 is " + n1);
System.out.println("Swapped num 2 is " + n2);
Output:
Enter number 1: 10
Enter number 2: 20
Real num 1 is 10
Real num 2 is 20
Swapped num 1 is 20
Swapped num 2 is 10
--------------------------------------------------------------------
12)m =you are male
f = female
other
char gender;
System.out.print("Enter your gender(M/F/o): ");
gender= sc.next().charAt(0);
if(gender=='M' || gender=='m'){
System.out.println("Male");
}
else if(gender=='F' || gender=='f'){
System.out.println("Female");
}
else if(gender=='O' || gender=='o'){
System.out.println("Others");
}
else{
System.out.println("Enter a valid argument");
}
Output:
Enter your gender(M/F/o): f
Female
--------------------------------------------------------------------
13)
number (WEEK DAYS)
1 =>sunday
2 =>monday
3 =>tuesday
int day;
System.out.print("Enter a week day number: ");
day= sc.nextInt();
if(day==1){
System.out.println(day + " => Monday");
}
else if(day==2){
System.out.println(day + " => Tuesday");
}
else if(day==3){
System.out.println(day + " => Wednesday");
}
else if(day==4){
System.out.println(day + " => Thursday");
}
else if(day==5){
System.out.println(day + " => Friday");
}
else if(day==6){
System.out.println(day + " => Saturday");
}
else if(day==7){
System.out.println(day + " => Sunday");
}
else{
System.out.println("Not a valid week day number");
}
Output:
Enter a week day number: 4
4 => Thursday
--------------------------------------------------------------------
14 )user number
check number :even odd
int num;
System.out.print("Enter a number: ");
num= sc.nextInt();
if(num%2==0){
System.out.println(num + " is even");
}
else{
System.out.println(num + " is odd");
}
Output:
Enter a number: 89
89 is odd
--------------------------------------------------------------------
15)
char match
a =>apple
b :ball
c :cat
not match
char ch;
System.out.print("Enter an alphabet: ");
ch= sc.next().charAt(0);
if(ch=='a' || ch=='A'){
System.out.println("Apple");
}
else if(ch=='b' || ch=='B'){
System.out.println("Ball");
}
else if(ch=='c' || ch=='C'){
System.out.println("Cat");
}
else{
System.out.println("Not match");
}
Output:
Enter an alphabet: b
Ball
--------------------------------------------------------------------
}
}