yanghui.java

来自「多个java程序」· Java 代码 · 共 57 行

public class Yanghui {
	int h;
	Integer [][]c;
	int length;
	
	public Yanghui(int hh){
		h=hh;
		c=new Integer [h][h+4];
		int i=0;
		int j=0;
		for (i=0;i<h;i++) c[i][0]=new Integer(0);
		c[0][1]=new Integer(1);
		c[0][2]=new Integer(0);//二维数组无法自动赋初值
		for (i=1;i<h;i++){
			for (j=1;j<=i+1;j++){
				c[i][j]=new Integer(c[i-1][j-1].intValue()+c[i-1][j].intValue());
			}
			c[i][j]=new Integer(0);
		}
		System.out.println(c[h-1][Math.round(h/2)]);
		length=c[h-1][Math.round(h/2)].toString().length()*2;
				
	}
	
	public void printyangh(){
		int i=0;
		int j=0;
		for(i=0;i<h;i++){
			int k=1;
			int k1=1;
			for (k=1;k<=h-1-i;k++)
				for(k1=1;k1<=length/2;k1++)
					System.out.print(" ");
			for (j=1;j<=i+1;j++){
				printone(c[i][j]);
			}
			System.out.println("");
		}
		
	}
	
	void printone(Integer i){
		int j=0;
		for(j=0;j<length-i.toString().length();j++){
			System.out.print(" ");
		}
		System.out.print(i);
	}
	
	int jiecheng(int n){
		if(n==0)return 1;
		else return n*jiecheng(n-1);
	}

}