ADD week 5

02-Easy5/E5/sources/org/jetbrains/annotations/Contract.java

@@ -0,0 +1,19 @@
+package org.jetbrains.annotations;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
+@Documented
+@Retention(RetentionPolicy.CLASS)
+/* loaded from: classes.dex */
+public @interface Contract {
+    String mutates() default "";
+
+    boolean pure() default false;
+
+    String value() default "";
+}