1. import java.util.Scanner;
   
2. public class PascalTriangle {public static void main(String[] args) {    System.out.print("请输入需要计算的行数: ");  
   
3.   Scanner scanner = new Scanner(System.in);  
   
4.   final int num = scanner.nextInt();  
   
5.   int[][] ary = getPascalTriangle(num);    for(int[] item: ary)
   
6. {   for(int value: item){    System.out.print((value > 0? value: "") + " ");
   
7.   }   
   
8. System.out.println();
   
9. }
   
10. }
    
11. private static int[][] getPascalTriangle(final int num)
    
12. {  int[][] ary = new int[num][num];
    
13.    for(int i = 0; i < ary.length; i++){   ary[i][0] = 1;   
    
14. ary[i][i] = 1;  }  
    
15.   for(int i = 1; i < ary.length; i++){   for(int j = 1; j <= i; j++)
    
16. {    ary[i][j] = ary[i-1][j-1] + ary[i-1][j];   }  }  return ary; }}

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1. import java.util.Scanner;
   
2. public class PascalTriangle {public static void main(String[] args) {    System.out.print("请输入需要计算的行数: ");  
   
3.   Scanner scanner = new Scanner(System.in);  
   
4.   final int num = scanner.nextInt();  
   
5.   int[][] ary = getPascalTriangle(num);    for(int[] item: ary)
   
6. {   for(int value: item){    System.out.print((value > 0? value: "") + " ");
   
7.   }   
   
8. System.out.println();
   
9. }
   
10. }
    
11. private static int[][] getPascalTriangle(final int num)
    
12. {  int[][] ary = new int[num][num];
    
13.    for(int i = 0; i < ary.length; i++){   ary[i][0] = 1;   
    
14. ary[i][i] = 1;  }  
    
15.   for(int i = 1; i < ary.length; i++){   for(int j = 1; j <= i; j++)
    
16. {    ary[i][j] = ary[i-1][j-1] + ary[i-1][j];   }  }  return ary; }}

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