Java 7 introduced the multi-catch feature, allowing you to handle multiple exception types in a single catch block. This can lead to more concise and readable code, especially when you want to handle different exceptions in the same way. Here's a simple example: try{// code that may throw...
Having an unchecked exception thrown inside a static initializer will inevitably trigger theExceptionInInitializerErrorruntime error. Figure 3(a) shows how invoking theString::lengthmethod on a non-initializedStringvariable (whose value defaults tonull) throws theNullPointerException, which in turn trig...
This exception can be handled using the try-catch blocks. The NumberFormatException with a null value occurs when we try to convert a null value to an integer. The NumberFormatException with the value null occurs when we use JSP and cannot get the numeric value properly from a form field. ...
Java compiler forces us to catch and handle the checked exceptions when we use a method that throws it. These checked exceptions are anticipated, for example,FileNotFoundExceptioncan be thrown when we try to read a file from the filesystem. In a normal Java program, we can usetry-catch-fi...
In this example, we have demonstrated how encapsulating code that may throw anIOExceptionwithin atry-catchblock can effectively resolve theunreported exception IOExceptionerror. Multiple Exceptions Handling Handling multiple exceptions in Java provides versatility by allowing specific responses to var...
Replace the code in the run() method with the code you want the thread to run. Make a new class object and invoke the start() function on it. Let us look at an example to understand how to create a thread in Java. We will create a new category called ‘MyThread’ that will exten...
How to handle Java ArithmeticException? By: Rajesh P.S.Java ArithmeticException is a runtime exception that occurs when an arithmetic operation encounters an exceptional condition, such as division by zero or an integer overflow. To handle ArithmeticException in Java, you can use try-catch blocks...
try{}catch(Exceptione){} try-finally try{}finally{} 2. How an exception floats in Java? Under normal circumstances, when there is an exception occurred during runtime, JVM wraps the error information in an instance of the sub-type ofThrowable. This exception object is similar to other Java...
java.lang.OutOfMemoryError: <reason> <stack trace> (Native method) “Java heap space” This error message doesn’t necessarily imply a memory leak. In fact, the problem can be as simple as a configuration issue. For example, I was responsible for analyzing an application which was consisten...
Like GRADLE_OPTS, this will override JAVA_TOOL_OPTIONS, but not _JAVA_OPTIONS._ Debugging OOM errors When it comes to debugging opaque OOM errors, your best bet is to look for that exit code 137. Let’s look at Gradle builds as an example. Gradle can produce confusing error messages ...