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Author: M-F-Tushar

OOP in Java/Chapter 10 - Object-Oriented Thinking/Code_Example/Exercise10_18.java

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+package ch_10;
+
+import java.math.BigInteger;
+import java.util.Arrays;
+
+/**
+ * 10.18 (Large prime numbers) Write a program that finds five prime numbers larger
+ * than Long.MAX_VALUE.
+ */
+public class Exercise10_18 {
+    //    BigInteger TWO = BigInteger.valueOf(2L);
+    static final BigInteger lowerBound = BigInteger.valueOf(Long.MAX_VALUE);
+    BigInteger[] primeBigIntegers = new BigInteger[5];
+    BigInteger testNum = lowerBound;
+
+    public static void main(String[] args) {
+        Exercise10_18 obj = new Exercise10_18();
+
+        int idx = 0;
+        while (idx < 5) {
+            obj.testNum = obj.testNum.nextProbablePrime();
+            obj.primeBigIntegers[idx] = obj.testNum;
+            idx++;
+        }
+        System.out.println(Arrays.toString(obj.primeBigIntegers));
+    }
+
+}