How to Generate Random Numbers in Java without Duplicates?
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Condition for Generating Random Numbers without Duplicates in Java
Description: Generating random numbers without duplicates in Java can be achieved by using a Set to store the numbers, ensuring that only unique values are kept. A HashSet is commonly used because it automatically handles duplicates by not allowing the same number to be added more than once. A Random object or ThreadLocalRandom can be used to generate random numbers within a specified range. The process involves generating random numbers and checking if they already exist in the set before adding them. If the number is not in the set, it is added; if it already exists, another number is generated. This continues until the desired number of unique random numbers is generated. This approach is efficient and guarantees that all numbers in the set will be unique.
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jTextField1 = new javax.swing.JTextField();
jButton1 = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jLabel3 = new javax.swing.JLabel();
jTextField2 = new javax.swing.JTextField();