How to print solid rectangle pattern in java program.
To print a solid rectangle pattern in a Java program, you can use nested loops. Here’s a simple example that demonstrates how to create a solid rectangle of asterisks (*). You can adjust the dimensions of the rectangle by changing the values for width and height.
Example: Solid Rectangle Pattern
int n = 4;
int m = 5;
//outer loop
for(int i =1 ; i<=n; i++){
// inner loop
for(int j = 1; j <= m; j++){
//cell - (i,j)
if( i == 1 || j == 1 || i == n || j == m){
System.out.print("*");
}else{
System.out.print(" ");
}
}
System.out.println("");
}
}
}
Explanation:
- Outer Loop: The first loop ( for(int i =1 ; i<=n; i++)) iterates over the number of rows.
- Inner Loop: The second loop for(int j = 1; j <= m; j++)) iterates over the number of columns in each row.
- Printing: Inside the inner loop,
System.out.print("* ")prints an asterisk followed by a space to form the rectangle. After the inner loop finishes for a row,System.out.println()moves the cursor to the next line.
output:
*****
*****
*****
*****
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