我只想在文本文件中輸入矩陣，但結(jié)果明顯不同。我沒有任何想法。public void saveToTextFile() { try { BufferedWriter writer = new BufferedWriter(new FileWriter(new File("matrix.txt"))); for (int i = 0; i < matrix.length; i++) { for (int j = 0; j < matrix[i].length; j++) { writer.write(matrix[i][j] + " "); } writer.newLine(); } writer.flush(); writer.close(); } catch (IOException e) { System.out.println("Error"); }}我預計1 2 34 5 67 8 9但在文件中1 1 15 5 59 9 9
2 回答
慕容3067478
TA貢獻1773條經(jīng)驗 獲得超3個贊
你可以試試這個：
int[][] ints = new int[4][4]; // Let's say you have a 4 * 4 ints array filled like this
ints[0][0] = 1;
ints[0][1] = 2;
ints[0][2] = 3;
ints[0][3] = 4;
ints[1][0] = 5;
ints[1][1] = 6;
ints[1][2] = 7;
ints[1][3] = 8;
ints[2][0] = 9;
ints[2][1] = 10;
ints[2][2] = 11;
ints[2][3] = 12;
ints[3][0] = 13;
ints[3][1] = 14;
ints[3][2] = 15;
ints[3][3] = 16;
StringBuilder sb = new StringBuilder(); // String Builder to create the table structure before writing it to the file.
for (int[] int1 : ints) {
for (int j = 0; j < int1.length; j++) {
sb.append(int1[j]).append("\t"); // Add tab to delimite the elements
}
sb.append("\r\n"); // Add new line character
}
System.out.println(sb);
Path path = Paths.get("C:\\Users\\youruser\\Documents\\test.txt"); // The path to your file
Files.write(path, sb.toString().getBytes()); // Writes to that path the bytes in the string from the stringBuilder object.這將打印像表格的值：
繁星淼淼
TA貢獻1775條經(jīng)驗 獲得超11個贊
對您的方法進行輕微修改：
try {
int[][] matrix = new int[3][3];
BufferedWriter writer = new BufferedWriter(new FileWriter(new File("matrix.txt")));
int num = 1;
for (int i = 0; i < matrix.length; i++) {
for (int j = 0; j < matrix[i].length; j++) {
writer.write(num + " ");
num++;
}
writer.newLine();
}
writer.flush();
writer.close();
} catch (Exception e) {
System.out.println("Error");
}
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