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Tuesday, December 29, 2015


Triangle Pattern:


import java.io.*;
public class triangle {
    public static void main (){
        InputStreamReader istream = new InputStreamReader(System.in) ;
        BufferedReader read = new BufferedReader(istream) ;
        System.out.print("Enter Triangle Size : ");
        int num=0;
        try{
            num=Integer.parseInt( read.readLine() );
        } catch(Exception Number){
            System.out.println("Invalid Number!");
        }
            for(int i=1;i<=num;i++){
                for(int j=1;j<num-(i-1);j++){
                    System.out.print(" ");
                }
                for(int k=1;k<=i;k++){
                    System.out.print("*");
                    for(int k1=1;k1<k;k1+=k){
                        System.out.print("*");
                    }
                }
                System.out.println();
            }
    }
}


The result will look like:



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