BAT某厂数据分析终面面经

import java.util.Scanner; 

public class Matric{ 
  public static void main(String[] arg) 
  { 
    Scanner in = new Scanner(System.in); 
    int[][] matric=null; 
    int a=0,b=0; 
    a= in.nextInt(); 
    b= in.nextInt(); 
    matric =new int[a][b]; 
    for (int i=0;i<a;i++) 
    { 
      for(int j=0;j<b,j++) 
      { 
        matrix[i][j]=in.nextInt();     
      } 
    } 
    int target=in.nextInt(searchTrue(matrix,target)); 

  } 
 

  private static boolean searchTrue(int [][] matrix,int target){ 
    int row=matrix.length; //行 
    int col=matrix[0].length; //列 
    int i=0; 
    int j=col-1; 
    while(i<row && j>0){ 
      if(matrix[i][j]>target){ 
        j--; 
      }else if(matrix[i][j]<target) 
        i++; 
      else 
       return true; 
    } 
    return false; 
  } 
 
}