java assert

ByAnurag batra October 10, 2022October 23, 2022

    public static void main(String[] args) {
        int a = 6;
        assert a != 6 : "a != 6";
    }
//Exception in thread "main" java.lang.AssertionError: a != 6

Foo result = null;
assert result != null;

final int result = a + b;
assert (result - a == b) : "Sum of " + a + " + " + b + " returned wrong sum " + result;

Here is what the above code is Doing:
1. The first assert statement is checking if the value of a is not equal to 6.
2. The second assert statement is checking if the value of result is not null.
3. The third assert statement is checking if the sum of a and b is equal to the value of result.

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ByAnurag batra September 18, 2022September 6, 2022

for(i = 1; i 1.8){ over18 += 1; } if(height[i-1] < 1.6){ under16 += 1; } } Here is what the above code is Doing: 1. It's creating a for loop that will run as many times as there are people in the array. 2. It's asking the user to enter the height of each...

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how to insert a 0 in an array java

ByAnurag batra September 17, 2022September 6, 2022

public static int[] addPos(int[] a, int pos, int num) { int[] result = new int[a.length]; for(int i = 0; i < pos; i++) result[i] = a[i]; result[pos] = num; for(int i = pos + 1; i < a.length; i++) result[i] = a[i - 1]; return result; } Here is what the above code is Doing:...

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ByAnurag batra October 20, 2022September 6, 2022

int day = 4; switch (day) { case 6: System.out.println(“Today is Saturday”); break; case 7: System.out.println(“Today is Sunday”); break; default: System.out.println(“Looking forward to the Weekend”); } // Outputs “Looking forward to the Weekend” Here is what the above code is Doing: 1. The switch statement is evaluating the value of the day variable. 2. The…

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ByAnurag batra September 16, 2022September 6, 2022

public class MyClass { public static void main(String[] args) { } } Here is what the above code is Doing: 1. It creates a class called MyClass. 2. It creates a main method inside the class. 3. It creates a variable called myObj and assigns it to a new instance of the MyClass class. 4….

Java Examples

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ByAnurag batra October 4, 2022September 6, 2022

List copy = new ArrayList(); copy.addAll(originalList); Here is what the above code is Doing: 1. Create a new ArrayList called copy. 2. Add all the elements from the original list to the copy list.

how to move get selected from jfxtreetableview javafx

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how to move get selected from jfxtreetableview javafx

ByAnurag batra October 11, 2022September 6, 2022

package com.jenkov.javafx.controls; import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.image.Image; import javafx.scene.image.ImageView; import javafx.scene.layout.HBox; import javafx.stage.Stage; import java.io.FileInputStream; public class ImageViewExperiments extends Application { @Override public void start(Stage primaryStage) throws Exception { primaryStage.setTitle(“ImageView Experiment 1”); FileInputStream input = new FileInputStream(“resources/images/iconmonstr-home-6-48.png”); Image image = new Image(input); ImageView imageView = new ImageView(image); HBox hbox = new HBox(imageView);…

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