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Tutoriel de base Java

Java 流程控制

Java 数组

Java 面向对象(I)

Java 面向对象(II)

Java 面向对象(III)

Gestion des exceptions Java

Java 列表(List)

Java Queue(队列)

Java Map集合

Java Set集合

Java 输入输出(I/O)

Java Reader/Writer

Java 其他主题

Java 程序实现图形数据结构

Java examples in full

在这个实例中,我们将用Java实现图形数据结构。

示例:实现图形数据结构

class Graph {
  //内部类
  class Edge {
    int src, dest;
  }
  //顶点和边的数量
  int vertices, edges;
  //存储所有边的数组
  Edge[] edge;
  Graph(int vertices, int edges) {
    this.vertices = vertices;
    this.edges = edges;
    //初始化边数组
    edge = new Edge[edges];
    for(int i = 0; i < edges; i++) {
      //each element of the edge array
      //is an object of Edge type
      edge[i] = new Edge();
    }
  }
  public static void main(String[] args) {
    //Create an object of the Graph class
    int noVertices = 5;
    int noEdges = 8;
    Graph g = new Graph(noVertices, noEdges);
    //Create a graph
    g.edge[0].src = 1;   // edge 1---2
    g.edge[0].dest = 2;
    g.edge[1].src = 1;   // edge 1---3
    g.edge[1].dest = 3;
    g.edge[2].src = 1;   // edge 1---4
    g.edge[2].dest = 4;
    g.edge[3].src = 2;   // edge 2---4
    g.edge[3].dest = 4;
    g.edge[4].src = 2;   // edge 2---5
    g.edge[4].dest = 5;
    g.edge[5].src = 3;   // edge 3---4
    g.edge[5].dest = 4;
    g.edge[6].src = 3;   // edge 3---5
    g.edge[6].dest = 5;
    g.edge[7].src = 4;   // edge 4---5
    g.edge[7].dest = 5;
    //Print the graph
    for(int i = 0; i < noEdges; i++) {
      System.out.println(g.edge[i].src + " - " + g.edge[i].dest);
    }
  }
}

Output result

1 - 2
1 - 3
1 - 4
2 - 4
2 - 5
3 - 4
3 - 5
4 - 5
Graphical output

In the example above, we have implemented graphical data structures using Java.

Java examples in full