Java 格式化二维数字数组_Java_Arrays_String_Multidimensional Array_Formatting

Java 格式化二维数字数组

java arrays string formatting

Java 格式化二维数字数组,java,arrays,string,multidimensional-array,formatting,Java,Arrays,String,Multidimensional Array,Formatting,问题：我有一个二维数组，里面充满了数字。我必须以一种显示方式输出它：“*”，在具有不同值的邻居之间，如果值相同，则使用”。例如：我尝试过很多方法，比如用[Nx2][Mx2]大小或System.out.format创建另一个数组，但最终它的格式从来没有像我喜欢的那样。有什么建议可以解决这个问题吗 private static void changeColumn（int[]secondlayer，int n，int m）{ 字符串[][]finalLayerArr=新字符串[n*2-1][m]

问题：
我有一个二维数组，里面充满了数字。我必须以一种显示方式输出它：

“*”

，在具有不同值的邻居之间，如果值相同，则使用

”

。例如：

我尝试过很多方法，比如用

[Nx2][Mx2]

大小或

System.out.format

创建另一个数组，但最终它的格式从来没有像我喜欢的那样。有什么建议可以解决这个问题吗

private static void changeColumn（int[]secondlayer，int n，int m）{
字符串[][]finalLayerArr=新字符串[n*2-1][m]；
int finalLayerRow=-2；
//第二层输出
对于（int i=0；i


publicstaticvoidchangerow（字符串[][]finalLayerArr）{
对于（int i=0；i

它显示的结果与我想要的结果类似，但其格式与表中的格式不同。
首先循环数组中的数组数，然后循环每个数组
在各个数组中，检查这是否是数组中的第一项。如果是，请打印*
。然后检查前一个是否相等等
对于相邻行（具有相同项）之间的“leave”，我们可以将星形线存储在StringBuilder中，并在末尾打印出来
int[]arr={{1,1,3,4}，{2,2,3,4}；
int lineLength=arr[0]。长度*2+1；
对于（int i=0；i

其中打印：
********
*1 1*3*4
**** * *
*2 2*3*4
********

可以循环遍历数组中不是最后一行的每一行，然后遍历数组中不是最后一行的每一个字母，并检查它是否等于右边的一行和底部的一行。如果是，请打印适当的内容
大致如下：
public class FormattingArray {
    public static void printFormattedInts(int[][] unformattedInts) {

        // getting maximum digits per number

        int maxDigits = 0;

        for (int[] intArray : unformattedInts) {
            for (int num : intArray) {
                if (lengthOfInt(num) > maxDigits) {
                    maxDigits = lengthOfInt(num);
                }
            }
        }


        // printing first line (purely aesthetic)

        System.out.print("*".repeat(unformattedInts[0].length * maxDigits + unformattedInts[0].length + 1));

        System.out.println();

        // printing each row


        for (int row = 0; row < unformattedInts.length - 1; row ++) {
            String lowerRow = "*"; // the row to print below this one

            System.out.print("*");

            for (int i = 0; i < unformattedInts[row].length - 1; i ++) {

                if (lengthOfInt(unformattedInts[row][i]) < maxDigits) {
                    System.out.print("0".repeat(maxDigits - (lengthOfInt(unformattedInts[row][i]))));
                }

                System.out.print(unformattedInts[row][i]);

                if (unformattedInts[row][i] == unformattedInts[row][i + 1]) {
                    System.out.print(" ");
                } else {
                    System.out.print("*");
                }

                if (unformattedInts[row][i] == unformattedInts[row + 1][i]) {
                    lowerRow += " ".repeat(maxDigits);
                    lowerRow += "*";
                } else {
                    lowerRow += "*".repeat(maxDigits + 1);
                }

            }

            if (lengthOfInt(unformattedInts[row][unformattedInts[row].length - 1]) < maxDigits) {
                System.out.print("0".repeat(maxDigits - (lengthOfInt(unformattedInts[row][unformattedInts[row].length - 1]))));
            }

            System.out.print(unformattedInts[row][unformattedInts[row].length - 1]);

            System.out.println("*");

            // doing last char

            if (unformattedInts[row][unformattedInts[row].length - 1] == unformattedInts[row + 1][unformattedInts[row].length - 1]) {
                lowerRow += " ".repeat(maxDigits);
                lowerRow += "*";
            } else {
                lowerRow += "*".repeat(maxDigits + 1);
            }

            System.out.println(lowerRow);
        }

        // doing last row

        System.out.print("*");

        for (int i = 0; i < unformattedInts[unformattedInts.length - 1].length - 1; i ++) {

            if (lengthOfInt(unformattedInts[unformattedInts.length - 1][i]) < maxDigits) {
                System.out.print("0".repeat(maxDigits - lengthOfInt(unformattedInts[unformattedInts.length - 1][unformattedInts[0].length - 1])));
            }

            System.out.print(unformattedInts[unformattedInts.length - 1][i]);

            if (unformattedInts[unformattedInts.length - 1][i] == unformattedInts[unformattedInts.length - 1][i + 1]) {
                System.out.print(" ");
            } else {
                System.out.print("*");
            }

        }

        if (lengthOfInt(unformattedInts[unformattedInts.length - 1][unformattedInts[unformattedInts.length - 1].length - 1]) < maxDigits) {
            System.out.print("0".repeat(maxDigits - lengthOfInt(unformattedInts[unformattedInts.length - 1][unformattedInts[unformattedInts.length - 1].length - 1])));
        }

        System.out.print(unformattedInts[unformattedInts.length - 1][unformattedInts[unformattedInts.length - 1].length - 1]);

        System.out.println("*");

        System.out.print("*".repeat(unformattedInts[0].length * maxDigits + unformattedInts[0].length + 1));

        System.out.println();
    }

    public static int lengthOfInt(int num) {
        return String.valueOf(num).length();
    }
}


公共类格式化数组{
公共静态void printformatedInts（int[][]不可格式化）{
//获取每个数字的最大位数
int maxDigits=0；
for（int[]intArray:不可抗力）{
for（int num:intArray）{
如果（lengthOfInt（num）>maxDigits）{
maxDigits=lengthOfInt（num）；
}
}
}
//打印第一行（纯美学）
System.out.print（“*”）.repeat（不格式化[0]。长度*maxDigits+不格式化[0]。长度+1））；
System.out.println（）；
//打印每行
for（int row=0；rowpublic class FormattingArray {
    public static void printFormattedInts(int[][] unformattedInts) {

        // getting maximum digits per number

        int maxDigits = 0;

        for (int[] intArray : unformattedInts) {
            for (int num : intArray) {
                if (lengthOfInt(num) > maxDigits) {
                    maxDigits = lengthOfInt(num);
                }
            }
        }


        // printing first line (purely aesthetic)

        System.out.print("*".repeat(unformattedInts[0].length * maxDigits + unformattedInts[0].length + 1));

        System.out.println();

        // printing each row


        for (int row = 0; row < unformattedInts.length - 1; row ++) {
            String lowerRow = "*"; // the row to print below this one

            System.out.print("*");

            for (int i = 0; i < unformattedInts[row].length - 1; i ++) {

                if (lengthOfInt(unformattedInts[row][i]) < maxDigits) {
                    System.out.print("0".repeat(maxDigits - (lengthOfInt(unformattedInts[row][i]))));
                }

                System.out.print(unformattedInts[row][i]);

                if (unformattedInts[row][i] == unformattedInts[row][i + 1]) {
                    System.out.print(" ");
                } else {
                    System.out.print("*");
                }

                if (unformattedInts[row][i] == unformattedInts[row + 1][i]) {
                    lowerRow += " ".repeat(maxDigits);
                    lowerRow += "*";
                } else {
                    lowerRow += "*".repeat(maxDigits + 1);
                }

            }

            if (lengthOfInt(unformattedInts[row][unformattedInts[row].length - 1]) < maxDigits) {
                System.out.print("0".repeat(maxDigits - (lengthOfInt(unformattedInts[row][unformattedInts[row].length - 1]))));
            }

            System.out.print(unformattedInts[row][unformattedInts[row].length - 1]);

            System.out.println("*");

            // doing last char

            if (unformattedInts[row][unformattedInts[row].length - 1] == unformattedInts[row + 1][unformattedInts[row].length - 1]) {
                lowerRow += " ".repeat(maxDigits);
                lowerRow += "*";
            } else {
                lowerRow += "*".repeat(maxDigits + 1);
            }

            System.out.println(lowerRow);
        }

        // doing last row

        System.out.print("*");

        for (int i = 0; i < unformattedInts[unformattedInts.length - 1].length - 1; i ++) {

            if (lengthOfInt(unformattedInts[unformattedInts.length - 1][i]) < maxDigits) {
                System.out.print("0".repeat(maxDigits - lengthOfInt(unformattedInts[unformattedInts.length - 1][unformattedInts[0].length - 1])));
            }

            System.out.print(unformattedInts[unformattedInts.length - 1][i]);

            if (unformattedInts[unformattedInts.length - 1][i] == unformattedInts[unformattedInts.length - 1][i + 1]) {
                System.out.print(" ");
            } else {
                System.out.print("*");
            }

        }

        if (lengthOfInt(unformattedInts[unformattedInts.length - 1][unformattedInts[unformattedInts.length - 1].length - 1]) < maxDigits) {
            System.out.print("0".repeat(maxDigits - lengthOfInt(unformattedInts[unformattedInts.length - 1][unformattedInts[unformattedInts.length - 1].length - 1])));
        }

        System.out.print(unformattedInts[unformattedInts.length - 1][unformattedInts[unformattedInts.length - 1].length - 1]);

        System.out.println("*");

        System.out.print("*".repeat(unformattedInts[0].length * maxDigits + unformattedInts[0].length + 1));

        System.out.println();
    }

    public static int lengthOfInt(int num) {
        return String.valueOf(num).length();
    }
}


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