String .split完整测试

@Test
    public void testSplit() {
        String str1 = "1,2,3";
        String[] strArr1 = str1.split(",");
        String str2 = "1,2,";
        String[] strArr2 = str2.split(",");

        String str3 = ",2,3";
        String[] strArr3 = str3.split(",");

        String str4 = ",";
        String[] strArr4 = str4.split(",");

        String str5 = ",,";
        String[] strArr5 = str5.split(",");

        String str6 = ",,6";
        String[] strArr6 = str6.split(",");

        String str7 = "7,,";
        String[] strArr7 = str7.split(",");

        String str8 = ",8,";
        String[] strArr8 = str8.split(",");

        System.out.println("str1="+str1);
        for (int i = 0; i <strArr1.length; i++) {
            System.out.println("strArr1["+i+"]="+strArr1[i]);
        }
        System.out.println("**************************************");
        
        System.out.println("str2="+str2);
        for (int i = 0; i <strArr2.length; i++) {
            System.out.println("strArr2["+i+"]="+strArr2[i]);
        }
        System.out.println("**************************************");

        System.out.println("str3="+str3);
        for (int i = 0; i <strArr3.length; i++) {
            System.out.println("strArr3["+i+"]="+strArr3[i]);
        }
        System.out.println("**************************************");

        System.out.println("str4="+str4);
        for (int i = 0; i <strArr4.length; i++) {
            System.out.println("strArr4["+i+"]="+strArr4[i]);
        }
        System.out.println("**************************************");

        System.out.println("str5="+str5);
        for (int i = 0; i <strArr5.length; i++) {
            System.out.println("strArr5["+i+"]="+strArr5[i]);
        }
        System.out.println("**************************************");

        System.out.println("str6="+str6);
        for (int i = 0; i <strArr6.length; i++) {
            System.out.println("strArr6["+i+"]="+strArr6[i]);
        }
        System.out.println("**************************************");

        System.out.println("str7="+str7);
        for (int i = 0; i <strArr7.length; i++) {
            System.out.println("strArr7["+i+"]="+strArr7[i]);
        }
        System.out.println("**************************************");

        System.out.println("str8="+str8);
        for (int i = 0; i <strArr8.length; i++) {
            System.out.println("strArr8["+i+"]="+strArr8[i]);
        }
        
/**
str1=1,2,3
strArr1[0]=1
strArr1[1]=2
strArr1[2]=3
**************************************
str2=1,2,
strArr2[0]=1
strArr2[1]=2
**************************************
str3=,2,3
strArr3[0]=
strArr3[1]=2
strArr3[2]=3
**************************************
str4=,
**************************************
str5=,,
**************************************
str6=,,6
strArr6[0]=
strArr6[1]=
strArr6[2]=6
**************************************
str7=7,,
strArr7[0]=7
**************************************
str8=,8,
strArr8[0]=
strArr8[1]=8
*/
        

    }