Android java not equals

Is not equal android studio code example

Solution 1: i’ve tried this and it works , so try to display the contents variable , probably the problem is in the extras , try to display it in logCat : Solution 2: Your string is: So after spliting, myJunk[0] will contain (notice the space in front of the word EMPLOYEE). No need of using Solution 2: When you press your equals button you have to get the value of the textview by result.getText() so that you will get the value of text view and assign it in some string.

Android String Not Equal

i’ve tried this and it works , so try to display the contents variable , probably the problem is in the extras , try to display it in logCat :

String contents = "EMPLOYEE~~John Smith~~DIVISION~~Maintenance"; String[] myJunk = contents.split("~~"); // This should split everything up into an array named myJunk (right)? String val1 = myJunk[0]; Toast.makeText(this, "val1 = "+val1, Toast.LENGTH_LONG).show(); Toast.makeText(this, "val2 = "+myJunk[1], Toast.LENGTH_LONG).show(); // Now val1 Should be equal to "EMPLOYEE" if (myJunk[0].equals(val1))

Your string is: EMPLOYEE~~John Smith~~DIVISION~~Maintenance

So after spliting, myJunk[0] will contain EMPLOYEE (notice the space in front of the word EMPLOYEE).

So before comparing , you will need to trim your value

The method i usually use, is to print out my variables when in doubt. So if you are unsure of where the problem is, you could try something like this. (It requires you to be able to see the output, in logcat for example)

String contents = intent.getStringExtra("SCAN_RESULT"); // I know that "contents" contains the string " EMPLOYEE~~John Smith~~DIVISION~~Maintenance" System.out.println("contents is "+contents ); String[] myJunk = contents.split("~~"); // This should split everything up into an array named myJunk (right)? System.out.println("Array size is "+myJunk.length); String val1 = myJunk[0]; // Now val1 Should be equal to "EMPLOYEE" for(int i=0; i < myJunk.length; i++) < System.out.println("String "+i+ "in array is: "+myJunk[i]); >//Here i run through the array and print every element. if (myJunk[0].equals(val1)) < // Do Something >

It is a bit overkill, but this is mostly to show one way of getting all the information you need to find the problem 🙂

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Android string.equals() doesn’t match condition

First try to print your response check what is your response say or some extra thing is there or not.

 try < Log.d(TAG, "Json response :" + response); >catch (JSONException e) < // TODO Auto-generated catch block e.printStackTrace(); >

and then compare with your value.

Your status is not String format so,

 int getStatus = Integer.parseInt(json_response.getString("status")); 

Note :

Use this class to get json string ServiceHandler.java

package com.example; import java.io.BufferedInputStream; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import android.util.Log; public class ServiceHandler < static String response = null; public final static int GET = 1; public ServiceHandler() < >public String makeServiceCall(String url, int method) < return this.makeMyServiceCall(url, method); >public String makeMyServiceCall(String myurl, int method) < InputStream inputStream = null; HttpURLConnection urlConnection = null; try < /* forming th java.net.URL object */ URL url = new URL(myurl); urlConnection = (HttpURLConnection) url.openConnection(); /* optional request header */ urlConnection.setRequestProperty("Content-Type", "application/json"); /* optional request header */ urlConnection.setRequestProperty("Accept", "application/json"); /* for Get request */ urlConnection.setRequestMethod("GET"); int statusCode = urlConnection.getResponseCode(); /* 200 represents HTTP OK */ if (statusCode == 200) < inputStream = new BufferedInputStream(urlConnection.getInputStream()); response = convertInputStreamToString(inputStream); >> catch (Exception e) < Log.d("tag", e.getLocalizedMessage()); >return response; > private String convertInputStreamToString(InputStream inputStream) throws IOException < BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream)); String line = ""; String result = ""; while ((line = bufferedReader.readLine()) != null) < result += line; >/* Close Stream */ if (null != inputStream) < inputStream.close(); >return result; > > 

package com.example; import org.json.JSONException; import org.json.JSONObject; import android.app.Activity; import android.os.AsyncTask; import android.os.Bundle; import android.widget.Toast; public class MainActivity extends Activity < String jsonStr = ""; JSONObject jo; @Override protected void onCreate(Bundle savedInstanceState) < super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); new GetDatas().execute(); >class GetDatas extends AsyncTask  < @Override protected Void doInBackground(Void. params) < ServiceHandler sh = new ServiceHandler(); // put your url here. // Making a request to url and getting response jsonStr = sh.makeServiceCall("http://192.168.1.51/sumit/temp.txt", ServiceHandler.GET); return null; >@Override protected void onPostExecute(Void aVoid) < super.onPostExecute(aVoid); try < jo = new JSONObject(jsonStr); >catch (JSONException e) < // TODO Auto-generated catch block e.printStackTrace(); >try < if (jo.getInt("status") == 200) < Toast.makeText(getApplicationContext(), "do something", Toast.LENGTH_LONG).show(); >else < Toast.makeText(getApplicationContext(), "" + jo.getInt("status"), Toast.LENGTH_LONG).show(); >> catch (JSONException e) < // TODO Auto-generated catch block e.printStackTrace(); >> > 

Fit height of grid layout in android studio Code Example, All Languages >> Java >> fit height of grid layout in android studio “fit height of grid layout in android studio” Code Answer. android gridlayout equal column width . java by Average Aardvark on Oct 16 2020 Comment . 1 Source:

How to use equals() to replace «String1==String2» in Android Studio? Would any of the esteemed members explain it with examples?

To compare two strings, use String.equals

However, keep in mind you’ll need to do a null check on string1 first else you may end up with a NullPointerException . A null -safe version could look like:

boolean match = (string1 == null ? string2 == null : string1.equals(string2)); 

One more Android-specific alternative is:

TextUtils.equals(string1, string2); 

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Equals button in calculator doing nothing (Android Developer Tools)

@Override public void onClick(View v) < String expression = result.getText().toString(); // Log.d("LOG", expression); if(expression.contains("+"))< (. ) 

Maybe work. No need of using String.valueOf()

When you press your equals button you have to get the value of the textview by result.getText() so that you will get the value of text view and assign it in some string. String expression = String.valueOf(result);

Here you are simply using the result in String.valueOf(). Check whether your are getting the correct value or not by debugging or some sort of print statments.

Also post your code completely/reasonable code to avoid more questions so that you will get your answer.

Android studio gridlayout equal size Code Example, All Languages >> Java >> android studio gridlayout equal size “android studio gridlayout equal size” Code Answer. android gridlayout equal column width . java by Average Aardvark on Oct 16 2020 Comment . 1. Source: stackoverflow.com

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Not Equals in Java

This article shows how to use the != operator that we also call the not equals operator. We can also use ! with the equals() method to check the non-equality of the data.

Using the Not Equals Operator in Java

The most basic way to use the not equals operator is to check for equality between two variables.

The program has two int variables, num1 and num2 . Here, num1 contains the value 123 , and the num2 variable has 321 .

We create an if condition to check if the variables match or not. In the condition, write num1 != num2 where the variable on the left side of the operator is compared. The variable is on the right side of the operator.

The true block of the if condition executes when the condition is not met (when num1 is not equal to num2 ), and if they match, then the false block is executed.

As both the variables have different values, the true block of the condition executes.

public class JavaExample   public static void main(String[] args)    int num1 = 123;  int num2 = 321;   if (num1 != num2)   System.out.println("str1 and str2 are not equal");  > else   System.out.println("str1 and str2 are equal");  >   >  > 

str1 and str2 are not equal 

Using the Not Equals Operator With equals()

We can use the ! operator with the equals() method to check if the contents of the variables match or not.

In the example, we take two String variables. In the if condition, we check the str1.equals(str2) with a ! operator at the beginning.

The ! operator makes the result opposite, which means if the str1.equals(str2) statement returns true as a result, the operator ! makes it false.

So, in our cases, we check if the str1.equals(str2) throws true , and if yes, we use the operator, which proves that the variables are not the same.

public class JavaExample   public static void main(String[] args)    String str1 = "String A";  String str2 = "String B";   if (!str1.equals(str2))   System.out.println("str1 and str2 are not equal");  > else   System.out.println("str1 and str2 are equal");  >   >  > 

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Java not equal Example

In this article, we will show you a Java not equal Example. Firstly we will talk about what is != in Java general, and for what reason we use it. After that, we will do some examples of how we use it.

1. Introduction

• Arithmetic Operators
• Relational Operators
• Bitwise Operators
• Logical Operators
• Assignment Operators
• Misc Operators

The operator that we will analyze in this article is a relational operator. It is symbolized "! (!a.equals(b))" and checks if the values of two operands are equal or not, in case that values are not equal then condition becomes true. After the comparison, this operator returns a boolean value(true or false). The type of each operand that we use can be anything, for example, String, integer, double, short etc but when we compare them the type must be the same.

2. Technologies used

3. Difference between != and !a.equals(b).

The main difference between == and equals is that “==” is used to compare primitives while equals() method is recommended to check equality of objects. The goes for not equal.

4. Java not equal Examples

Here we show you some examples about != Java to understand better the use of this operator. First, we do some examples with some primitive types. Not_Equal.java

public class Not_Equal < public static void main (String args[]) < byte b1=1; byte b2=2; int in1=3; int in2=3; short sh1=5; short sh2=6; long l1=7; long l2=8; float f1=9.1f; float f2=10.1f; double d1=11.01; double d2=11.01; String s1="Good "; String s2="Morning"; if(b1!=b2) < System.out.println("true"); >else < System.out.println("false"); >if(in1!=in2) < System.out.println("true"); >else < System.out.println("false"); >if(sh1!=sh2) < System.out.println("true"); >else < System.out.println("false"); >if(l1!=l2) < System.out.println("true"); >else < System.out.println("false"); >if(f1!=f2) < System.out.println("true"); >else < System.out.println("false"); >if(d1!=d2) < System.out.println("true"); >else < System.out.println("false"); >if(s1!=s2) < System.out.println("true"); >else < System.out.println("false"); >> >

true false true true true false true

Here we do one example for not equal with objects. Not_Equal_Objects.java

public class Not_Equal_Objects < static class Car < private String name ; private int cc; private int speed; public Car(String name, int cc, int speed) < this.name = name; this.cc = cc; this.speed = speed; >> public static void main (String args[]) < Car a=new Car("Mercedes-Benz", 1400, 250); Car b=new Car("Fiat", 1200, 220); if(!a.equals(b)) < System.out.println("It is not the same car"); >if(a!=b) < System.out.println("It is not the same car"); >> >

It is not the same car It is not the same car

As you can see in lines 19 and 22 we can use both versions.

Here you can see an example with an override method. Overriding is a feature that allows a subclass or child class to provide a specific implementation of a method that is already provided by one of its super-classes or parent classes. This new method has the same name, same parameters or signature and same return type as a method in its super-class. Not_Equal_Override.java

public class Not_equal_override < static class Car < private static String name ; private int cc; private int speed; public Car(String name, int cc, int speed) < this.name = name; this.cc = cc; this.speed = speed; >@Override public boolean equals (Object o) < Car car= (Car) o; if(this.name.equals(car.name)) < return true; >return false; > > public static void main (String args[]) < Car b=new Car("Fiat", 1200, 220); Car c=new Car("Fiat", 1234, 144); if(!b.equals(c)) < System.out.println("The cars have not the same name"); >else < System.out.println("The cars have the same name"); >> >

The cars have the same name

In the above code, you can see how to do an override not equal method so that we can compare only the name of the cars.

5. More articles

6. Download the Complete Source Code

Last updated on Aug. 10th, 2021

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