in java-samples/src/main/java/com/jetbrains/analysis/DataFlowAnalysis.java [115:130]
private void constantEvaluationOfSimpleMethods() {
String foo = "foo";
String bar = "bar";
boolean startsWith = foo.startsWith(bar);
boolean contains = foo.contains(bar);
String o = "o";
boolean lastIndexOf = foo.lastIndexOf(o) == 0;
//String: contains, indexOf, startsWith, endsWith, lastIndexOf, length, trim, substring, equals, equalsIgnoreCase, charAt, codePointAt, compareTo, replace, valueOf
int four = 4;
boolean sqrt = Math.sqrt(four) == 1;
//Math: abs, sqrt, min, max
}