Basic Star Patterns Programs In Java

In this post, you will see some Basic Star Patterns Programs In Java. Before teaching these programs I have taught you about loops and nested loops in Java. If you don't know about loops, you can read about loops from the link given below.

• Java Do-While Loop
• Java While Loop
• Java For Loop

In this, we have taught you how to print the Star Pattern program from Java. This will make your loops concepts stronger. And these programs are going to be very beneficial for beginners or freshers.

• For-each Loop in Java
• Nested Loops in Java

We are going to do all the programs dry run. So you will notice the flow of code. You need to download the dry run excel file from the link given below the program.

Three types of patterns are printed in the JAVA programming language.

1. Star Pattern
2. Number Pattern
3. Character Pattern

1. Simple Rectangle Star Pattern.

 public class StarRectangle{  
   public static void main(String[] args){  
     //Outer loop for rows  
     for(int i=1; i<=4; i++){  
       //Inner loop for cols  
       for(int j=1; j<=4; j++){  
         //Print *  
         System.out.print("*");  
       }  
       //For new line  
       System.out.println();  
     }    
   }  
 }  

Output:

Download Dry Run File

2. Simple Rectangle Star Pattern.

 public class StarRectangle{  
   public static void main(String[] args){  
     //Outer loop for rows  
     for(int i=1; i<=4; i++){  
       //Inner loop for cols  
       for(int j=1; j<=4; j++){  
         //Print *  
         if(j%2 != 0)  
           System.out.print("*");  
         //Print =  
         else  
           System.out.print("=");  
       }  
       //For new line  
       System.out.println();  
     }    
   }  
 }  

Output:

Download Dry Run File

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3. Right Angle Triangle Star Pattern.

 public class RightAngle{  
   public static void main(String[] args){  
     //Outer loop for rows  
     for(int i=1; i<=4; i++){  
       //Inner loop for cols  
       for(int j=1; j<=i; j++){  
         //Print *  
         System.out.print("*");  
       }  
       //For new line  
       System.out.println();  
     }       
   }  
 }  

Output:

Download Dry Run File

4. Inverted Right Angle Triangle Star Pattern.

 public class InvertedRightAngle{  
   public static void main(String[] args){  
     int space = 4;  
     //Outer loop for rows  
     for(int i=1; i<=4; i++){  
       for(int j=space; j>=i; j--){  
         //For Space  
         System.out.print(" ");  
       }  
       //Inner loop for cols  
       for(int k=1; k<=i; k++){  
         //Print *  
         System.out.print("*");  
       }  
       //For new line  
       System.out.println();  
     }    
   }  
 }  

Output:

Download Dry Run File

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5. Pyramid Star Pattern.

  public class InvertedRightAngle{   
   public static void main(String[] args){   
    int space = 4;   
    //Outer loop for rows   
    for(int i=1; i<=4; i++){   
     for(int j=space; j>=i; j--){   
      //For Space   
      System.out.print(" ");   
     }   
     //Inner loop for cols   
     for(int k=1; k<=i; k++){   
      //Print *   
      System.out.print("* ");   
     }   
     //For new line   
     System.out.println();   
    }    
   }   
  }   

Output:

Download Dry Run File

Practice well and become an expert in Java programming. With the help of these basic star pattern programs you can solve the next pattern yourself

JAVA Star Pattern Programs Examples for Practice

Solve the following Java Star Pattern programs on your skills. And if not, the solutions will be found in the next post.

1. Sandglass Java Star Pattern Program.

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

2. Diamond Pattern Program In Java.

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

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