学过一段时间的java 可就是没有 面向对象的思维
代码为证 求帮助啊!!!
从控制台输入一个M*N矩阵,输出行列互换后的矩阵import java.util.Scanner;public class juzhen {
public static void main(String[] args){ int M,N;
System.out.println("input M,N:");
Scanner reader=new Scanner(System.in);
M=reader.nextInt();
N=reader.nextInt();
String[][] arrayin = new String[M][N];
String[][] arrayout = new String[N][M];
for(int i=0;i<M;i++){
for(int j=0;j<N;j++){
//Scanner rd=new Scanner(System.in);
arrayin[i][j]=reader.next();
}
} for(int i=0;i<N;i++){
for(int j=0;j<M;j++){
arrayout[i][j]=arrayin[j][i];
System.out.print(arrayout[i][j]+" ");
}
System.out.println("");
}
}
}
代码为证 求帮助啊!!!
从控制台输入一个M*N矩阵,输出行列互换后的矩阵import java.util.Scanner;public class juzhen {
public static void main(String[] args){ int M,N;
System.out.println("input M,N:");
Scanner reader=new Scanner(System.in);
M=reader.nextInt();
N=reader.nextInt();
String[][] arrayin = new String[M][N];
String[][] arrayout = new String[N][M];
for(int i=0;i<M;i++){
for(int j=0;j<N;j++){
//Scanner rd=new Scanner(System.in);
arrayin[i][j]=reader.next();
}
} for(int i=0;i<N;i++){
for(int j=0;j<M;j++){
arrayout[i][j]=arrayin[j][i];
System.out.print(arrayout[i][j]+" ");
}
System.out.println("");
}
}
}
public final class Matrix {
private int width;
private int height;
private Object[][] arrays;
private Object[][] reversedArray; /**
*
* @param _width
* @param _height
* @param _arrays
*/
public Matrix(int _width, int _height, Object[][] _arrays) {
this.width = _width;
this.height = _height;
arrays = new Object[width][height];
System.arraycopy(_arrays, 0, arrays, 0, _arrays.length);
} /**
* reverse the Matrix
*
* @return
*/
public final Object[][] reverse() {
reversedArray = new Object[height][width];
for (int x = 0; x < arrays.length; x++) {
Object[] items = arrays[x];
for (int y = 0; y < items.length; y++) {
reversedArray[y][x] = items[y];
}
}
return reversedArray;
} /**
* print information
*/
public final void print() {
for (Object[] items : reversedArray) {
for (Object item : items) {
System.out.print(item.toString() + " ");
}
System.out.println();
}
} /**
* entrance
*
* @param args
*/
public static void main(String[] args) {
String[][] arrays = new String[][] { { "1-1", "1-2", "1-3", "1-4" },
{ "2-1", "2-2", "2-3", "2-4" }, { "3-1", "3-2", "3-3", "3-4" } };
Matrix matrix = new Matrix(arrays.length, arrays[0].length, arrays);
matrix.reverse();
matrix.print(); }
}