public class zhuanzhi {  
    public static String[][] zhuanzhi(String[][] arr2D){
        String result_arr[][] = new String[arr2D[0].length][arr2D.length];
          
        /*****输出用于转置的二维数组*******/  
        for (String x[]:arr2D){  
            for(String e:x){  
                System.out.print(e+" ");  
            }  
            System.out.println();  
        }  
        System.out.println();  
          
        /*******进行元素倒置******/  
        for(int i=0 ; i<arr2D.length;i++){  
            for(int j=0; j<arr2D[i].length;j++){  
                result_arr[j][i]=arr2D[i][j]; //转置核心  
            }     
        }
        for (String x[]:result_arr){  
            for(String e:x){  
                System.out.print(e+" ");  
            }  
            System.out.println();  
        }  
        return result_arr; 
    }
    public static void main(String[] args) {
        String[][]arr2D = {{"newid,2.0", "ea7c2512a8f64d8eafdb5b56b0580ae0,3.0", "eaca34c2945d4e3a84529b6bff261db7,1.0", "ef0e2faef0fb4eba8f41e0b9361a15bc,2.0","0c951a332c604da5a6853b28a8b06e55,6.0"}, {"newid,1.0", "ea7c2512a8f64d8eafdb5b56b0580ae0,3.0", "eaca34c2945d4e3a84529b6bff261db7,2.0", "ef0e2faef0fb4eba8f41e0b9361a15bc,1.0", "0c951a332c604da5a6853b28a8b06e55,3.0"}};
        zhuanzhi(arr2D);
    }
}

数组实现转置矩阵