NullPointerException
TestObject a = new TestObject();String b = a.getTestResult();b.toString();NullPointerException
TestObject a = new TestObject();String b = a.getTestResult();b.toString();nullpointerexception java
Integer num;
num = new Integer(10);nullpointerexception java
int x;
x = 10;nullpointerexception
public class MyClass{
private Object iAmNowNull;//This is null by default
private Object iAmInitialized=new Object();
public void test(){
System.out.println(iAmInitialized.toString());//prints that object
System.out.println(iAmNull.toString());//throws a NullPointerException
}nullpointerexception
public class MyClass{
private Object iAmNull;//This is null by default
private Object iAmInitialized=new Object();
public void test(){
System.out.println(iAmInitialized.toString());//prints that object
System.out.println(iAmNull.toString());//throws a NullPointerException
}
}NullPointerException
TestObject a = new TestObject();String b = a.getTestResult();b.toString();nullpointerexception java
Integer num;
num = new Integer(10);nullpointerexception java
int x;
x = 10;nullpointerexception
public class MyClass{
private Object iAmNowNull;//This is null by default
private Object iAmInitialized=new Object();
public void test(){
System.out.println(iAmInitialized.toString());//prints that object
System.out.println(iAmNull.toString());//throws a NullPointerException
}nullpointerexception
public class MyClass{
private Object iAmNull;//This is null by default
private Object iAmInitialized=new Object();
public void test(){
System.out.println(iAmInitialized.toString());//prints that object
System.out.println(iAmNull.toString());//throws a NullPointerException
}
}Copyright © 2021 Codeinu
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