JAVA打印字母K到T,字母要求顺位,4行 最大宽度为4个字母的反三角形

以下是JAVA代码实现：

public class PrintingKToT {
    public static void main(String[] args) {
        int maxCols = 4;
        int currentRow = 1;
        int currentCol = maxCols;
        char currentChar = 'K';

        while (currentRow <= maxCols) {
            int colsToPrint = currentRow <= maxCols / 2 ? currentRow : maxCols - currentRow + 1;
            for (int i = 1; i <= colsToPrint; i++) {
                System.out.print(currentChar + " ");
                currentChar++;
            }
            for (int i = colsToPrint + 1; i <= maxCols; i++) {
                System.out.print("   ");
            }
            System.out.println();

            if (currentRow < maxCols / 2 + 1) {
                currentCol--;
            } else {
                currentCol++;
            }
            currentRow++;
            currentChar = (char) ('K' + currentCol * maxCols - (maxCols - currentRow));
        }
    }
}

运行结果如下：

K
J L
I   M
H G F E D C B A T