PRINT * PATTERNS USING LOOPS 

Pattern 1

 package com.cnc;

public class Main {

    public static void main(String[] args) {
        int rows = 5;
//            TO PRINT i ROWS
        for(int i = 1; i <= rows; ++i) {
//            TO PRINT j COLUMN
            for(int m = 1; i <= j; ++j) {
            System.out.print(" *");
            }
            System.out.println();
        }
    }
OUTCOME:
* 
* * 
* * * 
* * * * 
* * * * *
                                                                                                                                                                      

Pattern 2
package com.cnc;

public class Main {

    public static void main(String[] args) {


        int rows1 = 5;
        for(int i = rows1; i>=1;i--){
            for(int j = 1;j<=i;j++) {
                    System.out.print(" *");
            }
            System.out.println("");
        }
    }
}
OUTCOME:
 * * * * *
 * * * *
 * * *
 * *
 *
                                                                                             
Pattern 3
 * * * * *      Here _ is the blank and general formula for i th rows the _ is 2(i-1)
 _ * * * *      and for number of * for i th row is n-i+1 , n= rows 
 _ _ * * *
 _ _ _ * *
 _ _ _ _ *
public static void main(String[] args) {


    int rows1 = 5;
    for(int i = 1; i<=rows1;i++){
        for(int j = 1;j<=(i-1);j++) {   //not using 2(i-1) rather we will
            System.out.print("  ");     // be using the space 2 times to avoid complication
        }
        for(int j = 1;j<=rows1-i+1;j++){
            System.out.print("* ");
        }
        System.out.println();
    }
}
}
                                                                                             

Pattern 4




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