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Tech Jargon - Decoded
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Архів дописів
// *
// **
// ***
// **
// *
public class Pattern3{
public static void main(String args[]){
int n=5;
int totalRows=n;
int stars=1;
for(int row=1;row<=totalRows;row++){
for(int starCount=1;starCount<=stars;starCount++){
System.out.print("*");
}
System.out.println();
if(row <= totalRows/2 ){
stars++;
}
else{
stars--;
}
}
}
}// *
// ***
// *****
// *******
public class Pattern2{
public static void main(String args[]){
int n=4;
int totalRows=n;
int spaces=n-1;
int stars=1;
for(int row=1;row<=totalRows;row++){
// spaces
for(int countSpaces=1;countSpaces<=spaces;countSpaces++){
System.out.print(" ");
}
//stars
for(int countStars=1;countStars<=stars;countStars++){
System.out.print("*");
}
System.out.println();
spaces--;
stars+=2;
}
}
}// *
// **
// ***
// ****
// *****
public class Pattern1{
public static void main(String args[]){
int n=5;
int totalRows=n;
for(int row=1;row<=totalRows;row++){
for(int starCount=1;starCount<=row;starCount++){
System.out.print("*");
}
System.out.println();
}
}
}// Program to print following pattern
// *******
// * *
//
// * *
public class Pattern5{
public static void main(String args[]){
int n=4;
int totalRows=n;
int spaces=1;
int stars=n-1;
for(int row=1;row<=2*n-1;row++){
System.out.print("*");
}
System.out.println();
for(int row=2;row<=totalRows;row++){
for(int countStars=1;countStars<=stars;countStars++){
System.out.print("*");
}
for(int countSpaces=1;countSpaces<=spaces;countSpaces++){
System.out.print(" ");
}
for(int countStars=1;countStars<=stars;countStars++){
System.out.print("*");
}
System.out.println();
stars--;
spaces+=2;
}
}
}
// Program to print following pattern
// *
// ***
// *****
// *******
// *****
// ***
// *
public class Pattern4{
public static void main(String args[]){
int n=7;
int totalRows=n;
int spaces=n/2;
int stars=1;
for(int row=1;row<=totalRows;row++){
for(int spaceCount=1;spaceCount<=spaces;spaceCount++){
System.out.print(" ");
}
for(int starCount=1;starCount<=stars;starCount++){
System.out.print("*");
}
System.out.println();
if(row <= totalRows/2)
{
spaces--;
stars+=2;
}
else{
spaces++;
stars-=2;
}
}
}
}
// Program to print following pattern
// *
// **
// ***
// **
// *
public class Pattern3{
public static void main(String args[]){
int n=5;
int totalRows=n;
int stars=1;
for(int row=1;row<=totalRows;row++){
for(int starCount=1;starCount<=stars;starCount++){
System.out.print("*");
}
System.out.println();
if(row <= totalRows/2 ){
stars++;
}
else{
stars--;
}
}
}
}
// Program to print following pattern
// *
// ***
// *****
// *******
public class Pattern2{
public static void main(String args[]){
int n=4;
int totalRows=n;
int spaces=n-1;
int stars=1;
for(int row=1;row<=totalRows;row++){
// spaces
for(int countSpaces=1;countSpaces<=spaces;countSpaces++){
System.out.print(" ");
}
//stars
for(int countStars=1;countStars<=stars;countStars++){
System.out.print("*");
}
System.out.println();
spaces--;
stars+=2;
}
}
}
// Program to print following pattern
// *
// **
// ***
// ****
// *****
public class Pattern1{
public static void main(String args[]){
int n=5;
int totalRows=n;
for(int row=1;row<=totalRows;row++){
for(int starCount=1;starCount<=row;starCount++){
System.out.print("*");
}
System.out.println();
}
}
}
// Program to find corresponding day for a given week number
import java.util.Scanner;
public class FindCorrespondingDay{
public static void main(String args[]){
int num;
System.out.println("Enter the number:(0 to 6):");
Scanner input=new Scanner(System.in);
num=input.nextInt();
switch(num)
{
case 0:System.out.println("Corresponding day for number "+num+" is Sunday");
break;
case 1:System.out.println("Corresponding day for number "+num+" is Monday");
break;
case 2:System.out.println("Corresponding day for number "+num+" is Tuesday");
break;
case 3:System.out.println("Corresponding day for number "+num+" is Wednesday");
break;
case 4:System.out.println("Corresponding day for number "+num+" is Thursday");
break;
case 5:System.out.println("Corresponding day for number "+num+" is Friday");
break;
case 6:System.out.println("Corresponding day for number "+num+" is Saturday");
break;
default:System.out.println("Invalid input");
}
}
}
// Program to read three values and print maximum value among three values
import java.util.Scanner;
public class MaxOfThree{
public static void main(String args[]){
int num1,num2,num3;
System.out.println("Enter three numbers:");
Scanner input=new Scanner(System.in);
num1=input.nextInt();
num2=input.nextInt();
num3=input.nextInt();
if(num1>num2 && num1>num3){
System.out.println(num1+" is maximum value");
}
else if(num2>num1 && num2>num3){
System.out.println(num2+" is maximum value");
}
else{
System.out.println(num3+" is maximum value");
}
}
}
// Program to take year as an input and check wheather its leap year or not.
import java.util.Scanner;
public class LeapOrNot{
public static void main(String args[]){
int year;
System.out.println("Enter the Year:");
Scanner input=new Scanner(System.in);
year=input.nextInt();
if((year%4==0 && year%100!=0) || (year%400 ==0)){
System.out.println(year+" is a leap year");
}
else{
System.out.println(year+" is not a leap year");
}
}
}
//Program to read three angles of a triangle and check if it is a valid or invalid triangle
// Valid triangle-A triangle to be valid ,the sum of its angles must be 180,and each angle should be greater than 0.
import java.util.Scanner;
public class ValidOrNot{
public static void main(String args[]){
int angle1,angle2,angle3,sumAngles;
System.out.println("Enter the three angles of triangle:");
Scanner input=new Scanner(System.in);
angle1=input.nextInt();
angle2=input.nextInt();
angle3=input.nextInt();
sumAngles=angle1+angle2+angle3;
if(sumAngles==180 && angle1>0 && angle2>0 && angle3>0){
System.out.println("Its a valid triangle");
}
else{
System.out.println("Its an Invalid triangle");
}
}
}
// Program to read an integer value from the user and check if it is even or odd
import java.util.Scanner;
public class EvenOrOdd{
public static void main(String args[]){
int num;
System.out.println("Enter a number:");
Scanner input=new Scanner(System.in);
num=input.nextInt();
if(num%2==0)
{
System.out.println(num+" is an even number");
}
else{
System.out.println(num+" is an odd number");
}
}
}
// Program fo find area and volume of cuboid
import java.lang.*;
import java.util.Scanner;
class CuboidArea
{
public static void main(String args[])
{
float l,b,h,area,volume;
System.out.println("Enter length ,breadth,height of cuboid:");
Scanner s=new Scanner(System.in);
l=s.nextFloat();
b=s.nextFloat();
h=s.nextFloat();
area=2*(l*b+b*h+h*l);
volume=l*b*h;
System.out.println("Area and volume of cuboid :");
System.out.println("Area:"+area);
System.out.println("Volume:"+volume);
}
}
// Program to know the roots of a quadratic equation
import java.lang.*;
import java.util.Scanner;
class Roots
{
public static void main(String args[])
{
int a,b,c;
double r1,r2;
System.out.println("Enter the co-efficients:");
Scanner s=new Scanner(System.in);
a=s.nextInt();
b=s.nextInt();
c=s.nextInt();
r1=(-b+Math.sqrt((b*b)-4*a*c))/(2*a);
r2=(-b-Math.sqrt((b*b)-4*a*c))/(2*a);
Systam.out.println("Roots are:")
System.out.println("Root 1:"+r1);
System.out.println("Root 2:"+r2);
}
}
// Program to find area of triangle using Heron's formula
import java.lang.*;
import java.util.Scanner;
class Area{
public static void main(String args[])
{
float a,b,c,s;
double area;
System.out.println("Enter the three sides of the triangle:");
Scanner obj=new Scanner(System.in);
a=obj.nextFloat();
b=obj.nextFloat();
c=obj.nextFloat();
s=(a+b+c)/2f;
area=Math.sqrt(s*(s-a)*(s-b)*(s-c));
System.out.println("Area of triangle:"+area);
}
}
// Program for computing area of triangle
import java.lang.*;
import java.util.Scanner;
class Area{
public static void main(String args[])
{
float b,h,area;
System.out.println("Enter base and height of the triangle:");
Scanner s=new Scanner(System.in);
b=s.nextFloat();
h=s.nextFloat();
area=(b*h)/2;
System.out.println("Area :"+area);
}
}
// Program to find size and range of a data type
import java.lang.*;
class DataSizeRange
{
public static void main(String args[])
{
System.out.println("int minimum value:"+Integer.MIN_VALUE);
System.out.println("int maximum value:"+Integer.MAX_VALUE);
System.out.println("Number of bytes int take:"+Integer.BYTES);
System.out.println("byte minimum value:"+Byte.MIN_VALUE);
System.out.println("byte maximum value:"+Byte.MAX_VALUE);
System.out.println("Number of bytes byte take:"+Byte.BYTES);
System.out.println("float minimum value:"+Float.MIN_VALUE);
System.out.println("float maximum value:"+Float.MAX_VALUE);
System.out.println("Number of bytes float take:"+Float.BYTES);
System.out.println("double minimum value:"+Double.MIN_VALUE);
System.out.println("double maximum value:"+Double.MAX_VALUE);
System.out.println("Number of bytes double take:"+Double.BYTES);
System.out.println("Number of bytes char take:"+Character.BYTES);
}
}
// Program to read name of the person and print a welcome message to him/her.
import java.lang.*;
import java.util.Scanner;
public class ReadName
{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
System.out.print("Enter Your Name:");
String name=s.nextLine();
System.out.println("Welcome, "+name);
}
}
