Extract information from StackTraceElement

StackTraceElement class provides method to extract the class name, method name, line number , file name from the given stack trace element.

public String getClassName()

Returns the fully qualified name of the class

public String getMethodName()

Returns the name of the method containing the execution point represented by this stack trace element.

public String getFileName()

Returns the name of the source file containing the execution point represented by this stack trace element.

public int getLineNumber()

Returns the line number of the source line containing the execution point represented by this stack trace element.

Example

class StackTraceEx{
 void divide(){
  try{
   int val = 10/0;
  }
  catch(ArithmeticException e){
   throw e;
  }
 }

 void show(){
  divide();
 }

 void print(){
  show();
 }

 public static void main(String args[]){
  StackTraceEx obj = new StackTraceEx();

  try{
   obj.print();
  }
  catch(Exception e){
   StackTraceElement[] trace = e.getStackTrace();
   for(int i=0; i < trace.length-1; i++)
    System.out.println(trace[i].getClassName() +" " + trace[i].getFileName() +" " + trace[i].getMethodName() +" " + trace[i].getLineNumber());
   }
  }
}

Output

StackTraceEx StackTraceEx.java divide 15
StackTraceEx StackTraceEx.java show 22
StackTraceEx StackTraceEx.java print 25

   

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