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The Mongodb query:db.inventory.distinct( "item.sku", { dept: "A" } )
How can I write a equivalent code to the above query in java?
Considering item.sku is of a String Type, you can fire your distinct query like this:
BasicDBObject filter = new BasicDBObject();
filter.put( "dept", "A" );
MongoCursor<String> c = db.getCollection("inventory").distinct("item.sku", filter, String.class).iterator();
Hope this helps.
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This Code works fine in java 7.
Iteration in java 8 is successful but I am stacked while if else decision making.
I have one list in which i have integer as well as double value. How can i parse this and set to in model class?
AverageRatingModel avgRatingModel = new AverageRatingModel();
for(Property p:propertylist){
if(p.getName().equals("averagevote")){
avgRatingModel.setAvgRating(Double.parseDouble(p.getValue()));
}
if(p.getName().equals("nbvotes")){
avgRatingModel.setNoOfVotes(Integer.parseInt(p.getValue()));
}
}
You can use two streams but it would be horrible. It would must better to have a data structure which is designed for Properties.
properties.ifPresentDouble("averagevote", avgRatingModel::setAvgRating);
properties.ifPresentInt("nbvotes", avgRatingModel::setNoOfVotes);
You code will be much cleaner if you have useful data structure for your properteis.
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I need some help to replace all the single quotes in a string.
This is my string: The State of the water = 'ICE'
I want to remove the single quotes around ICE.
str = str.replaceAll("\'","");
Use this
String str = "The State of the water = 'ICE'";
str = str.replaceAll("'","");
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My sqlserver table has a column designed as a BIT datatype. It has values 1 and 0s
Then in my Java code, I do
result = new ArrayList
result.add( (Boolean)(rs.getBoolean("columnName")));
Then when I read the value from the list - it shows as Long.
According to everything I find, it says hat a BIT datatype is supposed to map to boolean.
Why does it come as Long?
What can be done to fix this?
You can call getBoolean directly and let it take care of all the casting/coverting:
result.add(rs.getBoolean("columnName"));
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String[] arraylist = {"0","0","0","0","0","0","0"};
but now I want to replace inside the array above to 1, to make it like this
String[] arraylist = {"0","0","0","1","0","0","0"};
Once try follow if you know position you want to change
arraylist[3]="1";
Hope this will helps you.
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Still getting the red bar. What's wrong with the AssertEquals?
public void testFindEmployeeByID() {
StubEmployeeRepositoryImpl result = new StubEmployeeRepositoryImpl(dataSource);
List<Employee> emp = result.findEmployeesByName("John", "X");
assertEquals("John"+"X", result.findEmployeesByName("John", "X"));
}
Probably assertEquals doesn't know how to compare List and String...