peter

public class  Matrix{

        static int[][] matrix = {
        { 1,  2,  3},
        { 4,  5,  6},
        { 7,  8,  9},
        {10, 11, 12}
    };

    public static boolean gleich(int[] a1, int[] a2) {
       boolean b = false;
        for (int i = 0; i<a1.length; i++){
                if (a1[i]==a2[i]){
                        b = true;
                }else{
                        return false;
                }
        }return b;
    }

    public static boolean enthaeltZeile(int[][] matrix, int[] zeile) {
        boolean b = false;
        for (int i = 0;i<matrix.length;i++){
                if (b==true){
                        break;
                }for (int j = 0;j<matrix[i].length;j++){
                        if (matrix[i][j]== zeile[j]){
                                b = true;
                        }else{
                                b = false;
                                break;
                        }
                }
        }return b;
    }


    public static boolean enthaeltSpalte(int[][] matrix, int[] spalte) {
        boolean b = false;
        for (int j=0;j<matrix[j].length;j++){
        if (b==true){
                break;
        }
                for (int i=0;i<matrix.length;i++){
                        if (matrix[i][j]==spalte[i]){
                        b = true;
                }else{
                        b = false;
                        break;
                        }
        }
        }return b;
    }


    public static int[][] transponieren(int[][] matrix) {
        int [][] trans = new int [matrix[0].length][matrix.length];
        for (int i = 0; i<matrix.length;++i){
                for (int j = 0; j<matrix[i].length;++j){
                        trans[j][i] = matrix[i][j];
                        }
         }return trans;
    }

    public static void main(String[] args) {
        System.out.println("gleich({1,2,3}, {1,2,3}): "
                + gleich(new int[]{1, 2, 3}, new int[]{1, 2, 3})); // true

        System.out.println("enthaeltZeile(matrix, {1,2,3}): "
                + enthaeltZeile(matrix, new int[]{1, 2, 3})); // true

        System.out.println("enthaeltSpalte(matrix, {1,4,7,10}: "
                        + enthaeltSpalte(matrix, new int[]{1,4,7,10}));

        System.out.println("Vorher:");
        for(int k=0; k<=matrix.length-1;k++){
            for(int j=0; j<=matrix[0].length-1;j++){
                System.out.print(matrix[k][j]);

            }
        }
        System.out.println();
        System.out.println("Nachher:");
        for(int k=0; k<=matrix[0].length-1;k++){
            for(int j=0; j<=matrix.length-1;j++){
                System.out.print(transponieren(matrix)[k][j]);

            }
        }

    }
}