fixed ktlint issues

Author: Nsikaktopdown

java-demo/build.gradle

@@ -32,7 +32,7 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.4.1'
     implementation 'com.google.android.material:material:1.5.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
-    implementation 'androidx.core:core-ktx:+'
+    implementation 'androidx.core:core-ktx:1.7.0'
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'