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Ingy döt Net 2026-04-30 12:34:36 -04:00
parent 4bb20c9b71
commit cbaf4c4b64
12390 changed files with 318560 additions and 27248 deletions
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20
Task/Integer-overflow/Java/integer-overflow-2.java
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@ -1,16 +1,16 @@
public final class IntegerOverflow {
public static void main(String[] args) {
// The following examples show that Java allows integer overflow without warning
// and calculates an incorrect result.
// From version 8, Java introduced methods which throw an ArithmeticException when overflow occurs,
public static void main(String[] args) {
// The following examples show that Java allows integer overflow without warning
// and calculates an incorrect result.
// From version 8, Java introduced methods which throw an ArithmeticException when overflow occurs,
// which prevents the calculation of an incorrect result. It also allows the programmer to replace an "int"
// with a "long" and to replace a "long" with a BigInteger.
// Uncomment the lines below to see the use of the new methods:
// addExact(), subtractExact(), multiplyExact() and negateExact().
System.out.println("Signed 32-bit:");
// Uncomment the lines below to see the use of the new methods:
// addExact(), subtractExact(), multiplyExact() and negateExact().
System.out.println("Signed 32-bit:");
System.out.println(-(-2_147_483_647 - 1));
// System.out.println(Math.negateExact(-2_147_483_647 - 1));
@ -42,6 +42,6 @@ public final class IntegerOverflow {
System.out.println((-9_223_372_036_854_775_807L - 1) / -1);
// System.out.println(Math.negateExact(Math.subtractExact(-9_223_372_036_854_775_807L, 1) / 1));
}
}
}