for(int i=0; i
     
       MIN_VALUE){						writerEdge(writer, matrix, j, i);					}				}			}
     

for(int i=0; i<matrix.length; i++){ for(int j=0; j<i && matrix[i][j] > MIN_VALUE; j++ ){ writerEdge(writer, matrix, j, i); } }

与下列情况

for(int i=0; i<matrix.length; i++){ for(int j=0; j<i; j++){ if(matrix[i][j] > MIN_VALUE){ writerEdge(writer, matrix, j, i);} } }

与

与