boolean expression parser in java

Question

Are there any java libraries or techniques to parsing boolean expressions piecemeal?

What I mean is given an expression like this:

T &

Answer 1

mXparser handles Boolean operators - please find few examples

Example 1:

import org.mariuszgromada.math.mxparser.*;
...
...
Expression e = new Expression("1 && (0 || (0 && 1))");
System.out.println(e.getExpressionString() + " = " + e.calculate());

Result 1:

1 && (0 || (0 && 1)) = 0.0

Example 2:

import org.mariuszgromada.math.mxparser.*;
...
...
Constant T = new Constant("T = 1");
Constant F = new Constant("F = 0");
Expression e = new Expression("T && (F || (F && T))", T, F);
System.out.println(e.getExpressionString() + " = " + e.calculate());

Result 2:

T && (F || (F && T)) = 0.0

For more details please follow mXparser tutorial.

Best regards