4. Explain the importance of translation when dealing with languages at different virtual machine levels. 5. At which level does assembly language appear in the virtual machine example shown in this section? 6. What software utility permits compiled Java programs to run on almost any computer? 7. Name the four virtual machine levels named in this section, from lowest to highest. 8. Why don't programmers write applications in machine language? 9. Machine language is used at which level of the virtual machine shown in Figure 1-1? 10. Statements at the assembly language level of a virtual machine are translated into state- ments at which other level