Java参数传递 数组的使用

数组在函数定义中的使用格式(int[]  OrphanCount)

 

调用的时候一般使用： int[] OrphanCountBefore = new int[2];

                               theCalledMethod(OrphanCountBefore);

 

 

 

这是公共函数

 

public void GetOrphanCount(int[]  OrphanCount) {
       
        int blockStoreOrphanCount = 0;
        int buildEnvOrphanCount = 0;
        String prePostText = "after";
        try {
           
                blockStoreOrphanCount = BlockStoreOrphanPurgeCache.getOrphanCount(true, ORPHAN_FILE, TestConstants.VERBOSE_ORPHAN_LOGGING);
                OrphanCount[0] = blockStoreOrphanCount;
                System.out.println("***** Found " + blockStoreOrphanCount + " blockstore orphans ");

           
                buildEnvOrphanCount = BuildEnvironmentOrphanPurge.getOrphanCount(ORPHAN_FILE, TestConstants.VERBOSE_ORPHAN_LOGGING);
                OrphanCount[1] = buildEnvOrphanCount;
                System.out.println("***** Found " + buildEnvOrphanCount + " buildenv orphans ");
   
           
        } catch (Exception e) { System.out.println("Still end up getting an exception up here"); e.printStackTrace();
        }
    }

 

这是调用者的代码

 public void testWhileCondEvalsTrue() throws Exception {
        int blockStoreOrphanCountBefore = 0;
        int buildEnvOrphanCountBefore = 0;
        int[] OrphanCountBefore = new int[2];

       
        GetOrphanCount(OrphanCountBefore);
        System.out.println("--------- Starting orphan data collection before running test case:  ---------"+OrphanCountBefore[0]);
       
       
        CreateWhileStep();
       
        //int OrphanCountAfter[2];
        int[]  OrphanCountAfter = new int[2];
        int blockStoreOrphanCountAfter = 0;
        int buildEnvOrphanCountAfter = 0;
           
        GetOrphanCount(OrphanCountAfter);
        System.out.println("--------- Starting orphan data collection after running test case:  ---------"+OrphanCountAfter[0]);   
        Assert.assertEquals(OrphanCountBefore[0],
            OrphanCountAfter[0],"the blockStoreOrphanCount should be equal before and after run the test case");
    }