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July 8, 2021 12:01 pm GMT

Java Program to Print Square Pattern Star Pattern

Program to Print Square Star Pattern
In this article we are going to see how to print the square star program.

Example-1When row value=4****************

Example-2:When row value=5*************************

Now, let's see the actual program to print it.Approach:

Enter total row and store it in an integer variable row.
Take first for loop to print all rows.
Take second/inner for loop to print column values.
Then go on printing the star symbols according to the iteration.

JAVA Code:

Static Star Character
User Input Character

Method-1 : Static Star Pattern

import java.util.*;public class Main {        public static void main(String args[])       {   // taking variable for loop iteration and row .    int row,r,c,d;    //creating object     Scanner s = new Scanner(System.in);    // entering the number of row    System.out.print("Enter rows : ");    row = s.nextInt();    //for loop for rows    for(  r=0;r<row;r++)        {            // printing stars            for( c=0;c<row;c++)                 System.out.print("*");            System.out.println();       }                 }}

Output:Enter rows : 5*************************

Method-2 : User Input Pattern

import java.util.*;public class Main {        public static void main(String args[])       {   // taking variable for loop iteration and row .    int row,r,c,d;    //creating object     Scanner s = new Scanner(System.in);    // entering the number of row    System.out.print("Enter rows : ");    row = s.nextInt();    // entering any character    System.out.print("Enter any character : ");    char sym = s.next().charAt(0);    //for loop for rows    for(  r=0;r<row;r++)        {            // printing stars            for( c=0;c<row;c++)                 System.out.print(sym);            System.out.println();       }                 }}

Output:Enter rows : 5Enter any character : ##########################

Explanation :Let's understand the program by going through the detailed explanation.We have taken row value as 5.Iteration-1r=0 (passes the first for loop condition) because it will execute until r< rowStar will be printed 5 time because inner for loop will be executed row time .

*****

Iteration-2r=1 (passes the first for loop condition) because it will execute until r< rowStar will be printed 5 time because inner for loop will be executed row time .

*****

Iteration-3r=2 (passes the first for loop condition) because it will execute until r< rowStar will be printed 5 time because inner for loop will be executed row time .

*****

Iteration-4r=3 (passes the first for loop condition) because it will execute until r< rowStar will be printed 5 time because inner for loop will be executed row time .

*****

Iteration-5r=4 (passes the first for loop condition) because it will execute until r< rowStar will be printed 5 time because inner for loop will be executed row time .

*****

Now i=5, so first for loop condition will fail. So next for loop will not be executed any more.Now, after end of all iteration we will see the complete pattern is printed on the output screen like this.

*************************

C Code:

#include <stdio.h>int main() {   int r, row, c ,d;   printf("Enter rows: ");   scanf("%d", &row);  for(  r=0;r<row;r++)        {            // printing stars            for( c=0;c<row;c++)                printf("*");           printf("
");       }    return 0;}

Output:Enter rows : 5*************************

C++ Code:

#include <iostream>using namespace std;int main(){   int row, r , c ,d ;   cout << "Enter  rows: ";   cin >> row;  for(  r=0;r<row;r++)        {            // printing stars            for( c=0;c<row;c++)                cout<< "*" ;          cout << "
" ;       }     return 0;   }

Output:Enter rows : 5*************************

Original Link: https://dev.to/sachinponnapalli/java-program-to-print-square-pattern-star-pattern-50ne

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