array2d.java

来自「java程序设计 清华出版社 孙燮华老师编写的程序源代码」· Java 代码 · 共 27 行

//array2D.java
public class array2D{
  public static void main(String[] args){
    int[][] array={{32,87},{589,12,88,1076},{2000,8,622}};
    int search = 1076;
    boolean foundIt = false;
    int i=0, j=0;
    
    forfor:                        //用forfor标记二重for循环
    for (i=0; i<array.length; i++) {//arry.length，数组arry的行数
      for (j=0; j<array[i].length; j++){//array[i].length，第[i]行元素个数
        if (array[i][j] == search) {
          foundIt = true;
          break forfor;            //跳出二重for循环forfor
        }
      }      
    }
    
    if(foundIt){
      System.out.println("Found " + search + " at i = " + i +", j = " + j);
    }
    else{    
      System.out.println(search + " is not in the array");
    }
  }
}