for loop to print the triangle problem

 This post last edited by the jiangjiewudi on 2013-11-21 14:29:17

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java print as shown in the graph ( two triangles connected ) , seeking answers. Really can not think of a solution. . .
------ Solution ---------------------------------------- ----
2 of their own change it not to end up

public class Test{ 
  	public static void main(String[] args) { 
  		printDengYao(5,9);//打印等腰三角形 
  	} 
  	public static void printDengYao(int yao,int di){ 
  		if(di%2==0){
  			di+=1;
  		} 
  			for(int i=0;i<yao;i++){
  			 
  				for(int j = 0;j<di/2-i;j++){ 
  					System.out.print(" "); 
  				}
  			
  				for(int k=0;k<=2*i;k++){ 
  					System.out.print("*"); 
  				} 
  			  for(int n = 0;n<2*(di/2-i);n++){ 
  					System.out.print(" "); 
  				}
  				for(int m=0;m<=2*i;m++){ 
  					System.out.print("*"); 
  				} 
  				System.out.println();
  			} 
  	}
  }

------ Solution ------------------------------------- -------

          int h = 5;//高度
          h--;
          int l = 4 * h;
          for (int i = 0; i <= h; i++) {
              for (int j = 0; j <= l; j++) {
                  if (j >= h - i && j <= h + i || j >= 3 * h - i && j <= 3 * h + i) {
                      System.out.print("*");
                  } else {
                      System.out.print(" ");
                  }
              }
              System.out.println();
          }

------ For reference only ------------------------- --------------
these problems can be attributed to two-dimensional array of issues
------ For reference only --------- ------------------------------
Thank you for reminding !
------ For reference only -------------------------------------- -

public class Test{ 
  	public static void main(String[] args) { 
  		printDengYao(5,9);//打印等腰三角形 
  	} 
  	public static void printDengYao(int yao,int di){ 
  		if(di%2==0){
  			di+=1;
  		} 
  	 
  		for(int i=0;i<yao;i++){ 
  			for(int j = 0;j<di/2-i;j++){ 
  				System.out.print(" "); 
  			}
  			for(int k=0;k<=2*i;k++){ 
  				System.out.print("*"); 
  			} 
  			System.out.println();
  		} 
  	}
  }

------ For reference only ------------------------------- --------


The two triangles , not one. . .
------ For reference only -------------------------------------- -
two-dimensional array how to write ?
------ For reference only -------------------------------------- -
two triangles connected to the corner is a coincidence , how to write ?
------ For reference only -------------------------------------- -
two triangles connected to the corner is a coincidence , how to write ?  

What do you mean ? What angle coincidence ? me are ok ah

------ For reference only ----- ----------------------------------
two triangles connected to the corner is a coincidence , this how write ?          
  
What do you mean ? What angle coincidence ? me are ok ah   
        is the lower right triangle to the left of the " *" and the right of the lower left corner of the triangle "*" share a .
------ For reference only -------------------------------------- -
upstairs can ah. What coincidence ?
------ For reference only -------------------------------------- -

public class Test{ 
  	public static void main(String[] args) { 
  		printDengYao(5,9);//打印等腰三角形 
  	} 
  	public static void printDengYao(int yao,int di){ 
  		if(di%2==0){
  			di+=1;
  		} 
  			for(int i=0;i<yao;i++){
  			 
  				for(int j = 0;j<di/2-i;j++){ 
  					System.out.print(" "); 
  				}
  			
  				for(int k=0;k<=2*i;k++){ 
  					System.out.print("*"); 
  				} 
  			  for(int n = 0;n<2*(di/2-i)-1;n++){ 
  					System.out.print(" "); 
  				}
  				if(i<yao-1)
  				{
  					for(int m=0;m<=2*i;m++){
  						System.out.print("*");	
  					}
  				}
  			 	else
  			 	{
  			 		for(int o=0;o<=2*i-1;o++){
  						System.out.print("*");	
  					}
  			 	}
  				System.out.println();
  			} 
  	}
  }

carefully counted before we know what you mean, you want a second triangle left one , plus a judgment on o it. . .