How to check if Solaris is 64 Bit or Not

Oracle Solaris 64 bit —  /usr/bin/isainfo -kv

JDK – 64 Bit

truss -t exec /weblogic/bea/jdk160_05/bin/java -version

truss -t exec /weblogic/bea/jdk160_05/bin/java  -d64 -version — this checks for 64 bit version