Java Arrays.Sort（arr，comparator）;不接受參數

Question

無法對多維數組進行排序。

static int ccheck[][] = new int[6*6*6][4]; 

    Comparator<Integer[]> comp = new Comparator<Integer[]>() { 
     @Override 
     public int compare(Integer[] t, Integer[] t1) { 
      Integer in1 = t[3]; 
      Integer in2 = t1[3]; 
      return in1.compareTo(in2);     
     } 
    }; 
    Arrays.sort(ccheck, comp); 

導致

error: java.lang.RuntimeException: Uncompilable source code - Erroneous sym type: java.util.Arrays.sort 

Answer 1

試着改變你的代碼：

static Integer ccheck[][] = new Integer[6*6*6][4]; 

    Comparator<Integer[]> comp = new Comparator<Integer[]>() { 
    @Override 
    public Integer compare(Integer[] t, Integer[] t1) { 
     Integer in1 = t[3]; 
     Integer in2 = t1[3]; 
     return in1.compareTo(in2);     
     } 
    }; 
    Arrays.sort(ccheck, comp);